Documentation

Overview

Package language provides access to the Cloud Natural Language API.

This package is DEPRECATED. Use package cloud.google.com/go/language/apiv1 instead.

For product documentation, see: https://cloud.google.com/natural-language/

Creating a client

Usage example:

import "google.golang.org/api/language/v1beta1"
...
ctx := context.Background()
languageService, err := language.NewService(ctx)

In this example, Google Application Default Credentials are used for authentication.

For information on how to create and obtain Application Default Credentials, see https://developers.google.com/identity/protocols/application-default-credentials.

Other authentication options

By default, all available scopes (see "Constants") are used to authenticate. To restrict scopes, use option.WithScopes:

languageService, err := language.NewService(ctx, option.WithScopes(language.CloudPlatformScope))

To use an API key for authentication (note: some APIs do not support API keys), use option.WithAPIKey:

languageService, err := language.NewService(ctx, option.WithAPIKey("AIza..."))

To use an OAuth token (e.g., a user token obtained via a three-legged OAuth flow), use option.WithTokenSource:

config := &oauth2.Config{...}
// ...
token, err := config.Exchange(ctx, ...)
languageService, err := language.NewService(ctx, option.WithTokenSource(config.TokenSource(ctx, token)))

See https://godoc.org/google.golang.org/api/option/ for details on options.

Index

Constants

View Source
const (
	// Apply machine learning models to reveal the structure and meaning of
	// text
	CloudLanguageScope = "https://www.googleapis.com/auth/cloud-language"

	// View and manage your data across Google Cloud Platform services
	CloudPlatformScope = "https://www.googleapis.com/auth/cloud-platform"
)

    OAuth2 scopes used by this API.

    Variables

    This section is empty.

    Functions

    This section is empty.

    Types

    type AnalyzeEntitiesRequest

    type AnalyzeEntitiesRequest struct {
    	// Document: Input document.
    	Document *Document `json:"document,omitempty"`
    
    	// EncodingType: The encoding type used by the API to calculate offsets.
    	//
    	// Possible values:
    	//   "NONE" - If `EncodingType` is not specified, encoding-dependent
    	// information (such as `begin_offset`) will be set at `-1`.
    	//   "UTF8" - Encoding-dependent information (such as `begin_offset`) is
    	// calculated based on the UTF-8 encoding of the input. C++ and Go are
    	// examples of languages that use this encoding natively.
    	//   "UTF16" - Encoding-dependent information (such as `begin_offset`)
    	// is calculated based on the UTF-16 encoding of the input. Java and
    	// Javascript are examples of languages that use this encoding natively.
    	//   "UTF32" - Encoding-dependent information (such as `begin_offset`)
    	// is calculated based on the UTF-32 encoding of the input. Python is an
    	// example of a language that uses this encoding natively.
    	EncodingType string `json:"encodingType,omitempty"`
    
    	// ForceSendFields is a list of field names (e.g. "Document") to
    	// unconditionally include in API requests. By default, fields with
    	// empty values are omitted from API requests. However, any non-pointer,
    	// non-interface field appearing in ForceSendFields will be sent to the
    	// server regardless of whether the field is empty or not. This may be
    	// used to include empty fields in Patch requests.
    	ForceSendFields []string `json:"-"`
    
    	// NullFields is a list of field names (e.g. "Document") to include in
    	// API requests with the JSON null value. By default, fields with empty
    	// values are omitted from API requests. However, any field with an
    	// empty value appearing in NullFields will be sent to the server as
    	// null. It is an error if a field in this list has a non-empty value.
    	// This may be used to include null fields in Patch requests.
    	NullFields []string `json:"-"`
    }

      AnalyzeEntitiesRequest: The entity analysis request message.

      func (*AnalyzeEntitiesRequest) MarshalJSON

      func (s *AnalyzeEntitiesRequest) MarshalJSON() ([]byte, error)

      type AnalyzeEntitiesResponse

      type AnalyzeEntitiesResponse struct {
      	// Entities: The recognized entities in the input document.
      	Entities []*Entity `json:"entities,omitempty"`
      
      	// Language: The language of the text, which will be the same as the
      	// language specified in the request or, if not specified, the
      	// automatically-detected language. See Document.language field for more
      	// details.
      	Language string `json:"language,omitempty"`
      
      	// ServerResponse contains the HTTP response code and headers from the
      	// server.
      	googleapi.ServerResponse `json:"-"`
      
      	// ForceSendFields is a list of field names (e.g. "Entities") to
      	// unconditionally include in API requests. By default, fields with
      	// empty values are omitted from API requests. However, any non-pointer,
      	// non-interface field appearing in ForceSendFields will be sent to the
      	// server regardless of whether the field is empty or not. This may be
      	// used to include empty fields in Patch requests.
      	ForceSendFields []string `json:"-"`
      
      	// NullFields is a list of field names (e.g. "Entities") to include in
      	// API requests with the JSON null value. By default, fields with empty
      	// values are omitted from API requests. However, any field with an
      	// empty value appearing in NullFields will be sent to the server as
      	// null. It is an error if a field in this list has a non-empty value.
      	// This may be used to include null fields in Patch requests.
      	NullFields []string `json:"-"`
      }

        AnalyzeEntitiesResponse: The entity analysis response message.

        func (*AnalyzeEntitiesResponse) MarshalJSON

        func (s *AnalyzeEntitiesResponse) MarshalJSON() ([]byte, error)

        type AnalyzeSentimentRequest

        type AnalyzeSentimentRequest struct {
        	// Document: Input document.
        	Document *Document `json:"document,omitempty"`
        
        	// EncodingType: The encoding type used by the API to calculate sentence
        	// offsets for the sentence sentiment.
        	//
        	// Possible values:
        	//   "NONE" - If `EncodingType` is not specified, encoding-dependent
        	// information (such as `begin_offset`) will be set at `-1`.
        	//   "UTF8" - Encoding-dependent information (such as `begin_offset`) is
        	// calculated based on the UTF-8 encoding of the input. C++ and Go are
        	// examples of languages that use this encoding natively.
        	//   "UTF16" - Encoding-dependent information (such as `begin_offset`)
        	// is calculated based on the UTF-16 encoding of the input. Java and
        	// Javascript are examples of languages that use this encoding natively.
        	//   "UTF32" - Encoding-dependent information (such as `begin_offset`)
        	// is calculated based on the UTF-32 encoding of the input. Python is an
        	// example of a language that uses this encoding natively.
        	EncodingType string `json:"encodingType,omitempty"`
        
        	// ForceSendFields is a list of field names (e.g. "Document") to
        	// unconditionally include in API requests. By default, fields with
        	// empty values are omitted from API requests. However, any non-pointer,
        	// non-interface field appearing in ForceSendFields will be sent to the
        	// server regardless of whether the field is empty or not. This may be
        	// used to include empty fields in Patch requests.
        	ForceSendFields []string `json:"-"`
        
        	// NullFields is a list of field names (e.g. "Document") to include in
        	// API requests with the JSON null value. By default, fields with empty
        	// values are omitted from API requests. However, any field with an
        	// empty value appearing in NullFields will be sent to the server as
        	// null. It is an error if a field in this list has a non-empty value.
        	// This may be used to include null fields in Patch requests.
        	NullFields []string `json:"-"`
        }

          AnalyzeSentimentRequest: The sentiment analysis request message.

          func (*AnalyzeSentimentRequest) MarshalJSON

          func (s *AnalyzeSentimentRequest) MarshalJSON() ([]byte, error)

          type AnalyzeSentimentResponse

          type AnalyzeSentimentResponse struct {
          	// DocumentSentiment: The overall sentiment of the input document.
          	DocumentSentiment *Sentiment `json:"documentSentiment,omitempty"`
          
          	// Language: The language of the text, which will be the same as the
          	// language specified in the request or, if not specified, the
          	// automatically-detected language. See Document.language field for more
          	// details.
          	Language string `json:"language,omitempty"`
          
          	// Sentences: The sentiment for all the sentences in the document.
          	Sentences []*Sentence `json:"sentences,omitempty"`
          
          	// ServerResponse contains the HTTP response code and headers from the
          	// server.
          	googleapi.ServerResponse `json:"-"`
          
          	// ForceSendFields is a list of field names (e.g. "DocumentSentiment")
          	// to unconditionally include in API requests. By default, fields with
          	// empty values are omitted from API requests. However, any non-pointer,
          	// non-interface field appearing in ForceSendFields will be sent to the
          	// server regardless of whether the field is empty or not. This may be
          	// used to include empty fields in Patch requests.
          	ForceSendFields []string `json:"-"`
          
          	// NullFields is a list of field names (e.g. "DocumentSentiment") to
          	// include in API requests with the JSON null value. By default, fields
          	// with empty values are omitted from API requests. However, any field
          	// with an empty value appearing in NullFields will be sent to the
          	// server as null. It is an error if a field in this list has a
          	// non-empty value. This may be used to include null fields in Patch
          	// requests.
          	NullFields []string `json:"-"`
          }

            AnalyzeSentimentResponse: The sentiment analysis response message.

            func (*AnalyzeSentimentResponse) MarshalJSON

            func (s *AnalyzeSentimentResponse) MarshalJSON() ([]byte, error)

            type AnalyzeSyntaxRequest

            type AnalyzeSyntaxRequest struct {
            	// Document: Input document.
            	Document *Document `json:"document,omitempty"`
            
            	// EncodingType: The encoding type used by the API to calculate offsets.
            	//
            	// Possible values:
            	//   "NONE" - If `EncodingType` is not specified, encoding-dependent
            	// information (such as `begin_offset`) will be set at `-1`.
            	//   "UTF8" - Encoding-dependent information (such as `begin_offset`) is
            	// calculated based on the UTF-8 encoding of the input. C++ and Go are
            	// examples of languages that use this encoding natively.
            	//   "UTF16" - Encoding-dependent information (such as `begin_offset`)
            	// is calculated based on the UTF-16 encoding of the input. Java and
            	// Javascript are examples of languages that use this encoding natively.
            	//   "UTF32" - Encoding-dependent information (such as `begin_offset`)
            	// is calculated based on the UTF-32 encoding of the input. Python is an
            	// example of a language that uses this encoding natively.
            	EncodingType string `json:"encodingType,omitempty"`
            
            	// ForceSendFields is a list of field names (e.g. "Document") to
            	// unconditionally include in API requests. By default, fields with
            	// empty values are omitted from API requests. However, any non-pointer,
            	// non-interface field appearing in ForceSendFields will be sent to the
            	// server regardless of whether the field is empty or not. This may be
            	// used to include empty fields in Patch requests.
            	ForceSendFields []string `json:"-"`
            
            	// NullFields is a list of field names (e.g. "Document") to include in
            	// API requests with the JSON null value. By default, fields with empty
            	// values are omitted from API requests. However, any field with an
            	// empty value appearing in NullFields will be sent to the server as
            	// null. It is an error if a field in this list has a non-empty value.
            	// This may be used to include null fields in Patch requests.
            	NullFields []string `json:"-"`
            }

              AnalyzeSyntaxRequest: The syntax analysis request message.

              func (*AnalyzeSyntaxRequest) MarshalJSON

              func (s *AnalyzeSyntaxRequest) MarshalJSON() ([]byte, error)

              type AnalyzeSyntaxResponse

              type AnalyzeSyntaxResponse struct {
              	// Language: The language of the text, which will be the same as the
              	// language specified in the request or, if not specified, the
              	// automatically-detected language. See Document.language field for more
              	// details.
              	Language string `json:"language,omitempty"`
              
              	// Sentences: Sentences in the input document.
              	Sentences []*Sentence `json:"sentences,omitempty"`
              
              	// Tokens: Tokens, along with their syntactic information, in the input
              	// document.
              	Tokens []*Token `json:"tokens,omitempty"`
              
              	// ServerResponse contains the HTTP response code and headers from the
              	// server.
              	googleapi.ServerResponse `json:"-"`
              
              	// ForceSendFields is a list of field names (e.g. "Language") to
              	// unconditionally include in API requests. By default, fields with
              	// empty values are omitted from API requests. However, any non-pointer,
              	// non-interface field appearing in ForceSendFields will be sent to the
              	// server regardless of whether the field is empty or not. This may be
              	// used to include empty fields in Patch requests.
              	ForceSendFields []string `json:"-"`
              
              	// NullFields is a list of field names (e.g. "Language") to include in
              	// API requests with the JSON null value. By default, fields with empty
              	// values are omitted from API requests. However, any field with an
              	// empty value appearing in NullFields will be sent to the server as
              	// null. It is an error if a field in this list has a non-empty value.
              	// This may be used to include null fields in Patch requests.
              	NullFields []string `json:"-"`
              }

                AnalyzeSyntaxResponse: The syntax analysis response message.

                func (*AnalyzeSyntaxResponse) MarshalJSON

                func (s *AnalyzeSyntaxResponse) MarshalJSON() ([]byte, error)

                type AnnotateTextRequest

                type AnnotateTextRequest struct {
                	// Document: Input document.
                	Document *Document `json:"document,omitempty"`
                
                	// EncodingType: The encoding type used by the API to calculate offsets.
                	//
                	// Possible values:
                	//   "NONE" - If `EncodingType` is not specified, encoding-dependent
                	// information (such as `begin_offset`) will be set at `-1`.
                	//   "UTF8" - Encoding-dependent information (such as `begin_offset`) is
                	// calculated based on the UTF-8 encoding of the input. C++ and Go are
                	// examples of languages that use this encoding natively.
                	//   "UTF16" - Encoding-dependent information (such as `begin_offset`)
                	// is calculated based on the UTF-16 encoding of the input. Java and
                	// Javascript are examples of languages that use this encoding natively.
                	//   "UTF32" - Encoding-dependent information (such as `begin_offset`)
                	// is calculated based on the UTF-32 encoding of the input. Python is an
                	// example of a language that uses this encoding natively.
                	EncodingType string `json:"encodingType,omitempty"`
                
                	// Features: The enabled features.
                	Features *Features `json:"features,omitempty"`
                
                	// ForceSendFields is a list of field names (e.g. "Document") to
                	// unconditionally include in API requests. By default, fields with
                	// empty values are omitted from API requests. However, any non-pointer,
                	// non-interface field appearing in ForceSendFields will be sent to the
                	// server regardless of whether the field is empty or not. This may be
                	// used to include empty fields in Patch requests.
                	ForceSendFields []string `json:"-"`
                
                	// NullFields is a list of field names (e.g. "Document") to include in
                	// API requests with the JSON null value. By default, fields with empty
                	// values are omitted from API requests. However, any field with an
                	// empty value appearing in NullFields will be sent to the server as
                	// null. It is an error if a field in this list has a non-empty value.
                	// This may be used to include null fields in Patch requests.
                	NullFields []string `json:"-"`
                }

                  AnnotateTextRequest: The request message for the text annotation API, which can perform multiple analysis types (sentiment, entities, and syntax) in one call.

                  func (*AnnotateTextRequest) MarshalJSON

                  func (s *AnnotateTextRequest) MarshalJSON() ([]byte, error)

                  type AnnotateTextResponse

                  type AnnotateTextResponse struct {
                  	// DocumentSentiment: The overall sentiment for the document. Populated
                  	// if the user enables
                  	// AnnotateTextRequest.Features.extract_document_sentiment.
                  	DocumentSentiment *Sentiment `json:"documentSentiment,omitempty"`
                  
                  	// Entities: Entities, along with their semantic information, in the
                  	// input document. Populated if the user enables
                  	// AnnotateTextRequest.Features.extract_entities.
                  	Entities []*Entity `json:"entities,omitempty"`
                  
                  	// Language: The language of the text, which will be the same as the
                  	// language specified in the request or, if not specified, the
                  	// automatically-detected language. See Document.language field for more
                  	// details.
                  	Language string `json:"language,omitempty"`
                  
                  	// Sentences: Sentences in the input document. Populated if the user
                  	// enables AnnotateTextRequest.Features.extract_syntax.
                  	Sentences []*Sentence `json:"sentences,omitempty"`
                  
                  	// Tokens: Tokens, along with their syntactic information, in the input
                  	// document. Populated if the user enables
                  	// AnnotateTextRequest.Features.extract_syntax.
                  	Tokens []*Token `json:"tokens,omitempty"`
                  
                  	// ServerResponse contains the HTTP response code and headers from the
                  	// server.
                  	googleapi.ServerResponse `json:"-"`
                  
                  	// ForceSendFields is a list of field names (e.g. "DocumentSentiment")
                  	// to unconditionally include in API requests. By default, fields with
                  	// empty values are omitted from API requests. However, any non-pointer,
                  	// non-interface field appearing in ForceSendFields will be sent to the
                  	// server regardless of whether the field is empty or not. This may be
                  	// used to include empty fields in Patch requests.
                  	ForceSendFields []string `json:"-"`
                  
                  	// NullFields is a list of field names (e.g. "DocumentSentiment") to
                  	// include in API requests with the JSON null value. By default, fields
                  	// with empty values are omitted from API requests. However, any field
                  	// with an empty value appearing in NullFields will be sent to the
                  	// server as null. It is an error if a field in this list has a
                  	// non-empty value. This may be used to include null fields in Patch
                  	// requests.
                  	NullFields []string `json:"-"`
                  }

                    AnnotateTextResponse: The text annotations response message.

                    func (*AnnotateTextResponse) MarshalJSON

                    func (s *AnnotateTextResponse) MarshalJSON() ([]byte, error)

                    type DependencyEdge

                    type DependencyEdge struct {
                    	// HeadTokenIndex: Represents the head of this token in the dependency
                    	// tree. This is the index of the token which has an arc going to this
                    	// token. The index is the position of the token in the array of tokens
                    	// returned by the API method. If this token is a root token, then the
                    	// `head_token_index` is its own index.
                    	HeadTokenIndex int64 `json:"headTokenIndex,omitempty"`
                    
                    	// Label: The parse label for the token.
                    	//
                    	// Possible values:
                    	//   "UNKNOWN" - Unknown
                    	//   "ABBREV" - Abbreviation modifier
                    	//   "ACOMP" - Adjectival complement
                    	//   "ADVCL" - Adverbial clause modifier
                    	//   "ADVMOD" - Adverbial modifier
                    	//   "AMOD" - Adjectival modifier of an NP
                    	//   "APPOS" - Appositional modifier of an NP
                    	//   "ATTR" - Attribute dependent of a copular verb
                    	//   "AUX" - Auxiliary (non-main) verb
                    	//   "AUXPASS" - Passive auxiliary
                    	//   "CC" - Coordinating conjunction
                    	//   "CCOMP" - Clausal complement of a verb or adjective
                    	//   "CONJ" - Conjunct
                    	//   "CSUBJ" - Clausal subject
                    	//   "CSUBJPASS" - Clausal passive subject
                    	//   "DEP" - Dependency (unable to determine)
                    	//   "DET" - Determiner
                    	//   "DISCOURSE" - Discourse
                    	//   "DOBJ" - Direct object
                    	//   "EXPL" - Expletive
                    	//   "GOESWITH" - Goes with (part of a word in a text not well edited)
                    	//   "IOBJ" - Indirect object
                    	//   "MARK" - Marker (word introducing a subordinate clause)
                    	//   "MWE" - Multi-word expression
                    	//   "MWV" - Multi-word verbal expression
                    	//   "NEG" - Negation modifier
                    	//   "NN" - Noun compound modifier
                    	//   "NPADVMOD" - Noun phrase used as an adverbial modifier
                    	//   "NSUBJ" - Nominal subject
                    	//   "NSUBJPASS" - Passive nominal subject
                    	//   "NUM" - Numeric modifier of a noun
                    	//   "NUMBER" - Element of compound number
                    	//   "P" - Punctuation mark
                    	//   "PARATAXIS" - Parataxis relation
                    	//   "PARTMOD" - Participial modifier
                    	//   "PCOMP" - The complement of a preposition is a clause
                    	//   "POBJ" - Object of a preposition
                    	//   "POSS" - Possession modifier
                    	//   "POSTNEG" - Postverbal negative particle
                    	//   "PRECOMP" - Predicate complement
                    	//   "PRECONJ" - Preconjunt
                    	//   "PREDET" - Predeterminer
                    	//   "PREF" - Prefix
                    	//   "PREP" - Prepositional modifier
                    	//   "PRONL" - The relationship between a verb and verbal morpheme
                    	//   "PRT" - Particle
                    	//   "PS" - Associative or possessive marker
                    	//   "QUANTMOD" - Quantifier phrase modifier
                    	//   "RCMOD" - Relative clause modifier
                    	//   "RCMODREL" - Complementizer in relative clause
                    	//   "RDROP" - Ellipsis without a preceding predicate
                    	//   "REF" - Referent
                    	//   "REMNANT" - Remnant
                    	//   "REPARANDUM" - Reparandum
                    	//   "ROOT" - Root
                    	//   "SNUM" - Suffix specifying a unit of number
                    	//   "SUFF" - Suffix
                    	//   "TMOD" - Temporal modifier
                    	//   "TOPIC" - Topic marker
                    	//   "VMOD" - Clause headed by an infinite form of the verb that
                    	// modifies a noun
                    	//   "VOCATIVE" - Vocative
                    	//   "XCOMP" - Open clausal complement
                    	//   "SUFFIX" - Name suffix
                    	//   "TITLE" - Name title
                    	//   "ADVPHMOD" - Adverbial phrase modifier
                    	//   "AUXCAUS" - Causative auxiliary
                    	//   "AUXVV" - Helper auxiliary
                    	//   "DTMOD" - Rentaishi (Prenominal modifier)
                    	//   "FOREIGN" - Foreign words
                    	//   "KW" - Keyword
                    	//   "LIST" - List for chains of comparable items
                    	//   "NOMC" - Nominalized clause
                    	//   "NOMCSUBJ" - Nominalized clausal subject
                    	//   "NOMCSUBJPASS" - Nominalized clausal passive
                    	//   "NUMC" - Compound of numeric modifier
                    	//   "COP" - Copula
                    	//   "DISLOCATED" - Dislocated relation (for fronted/topicalized
                    	// elements)
                    	//   "ASP" - Aspect marker
                    	//   "GMOD" - Genitive modifier
                    	//   "GOBJ" - Genitive object
                    	//   "INFMOD" - Infinitival modifier
                    	//   "MES" - Measure
                    	//   "NCOMP" - Nominal complement of a noun
                    	Label string `json:"label,omitempty"`
                    
                    	// ForceSendFields is a list of field names (e.g. "HeadTokenIndex") to
                    	// unconditionally include in API requests. By default, fields with
                    	// empty values are omitted from API requests. However, any non-pointer,
                    	// non-interface field appearing in ForceSendFields will be sent to the
                    	// server regardless of whether the field is empty or not. This may be
                    	// used to include empty fields in Patch requests.
                    	ForceSendFields []string `json:"-"`
                    
                    	// NullFields is a list of field names (e.g. "HeadTokenIndex") to
                    	// include in API requests with the JSON null value. By default, fields
                    	// with empty values are omitted from API requests. However, any field
                    	// with an empty value appearing in NullFields will be sent to the
                    	// server as null. It is an error if a field in this list has a
                    	// non-empty value. This may be used to include null fields in Patch
                    	// requests.
                    	NullFields []string `json:"-"`
                    }

                      DependencyEdge: Represents dependency parse tree information for a token.

                      func (*DependencyEdge) MarshalJSON

                      func (s *DependencyEdge) MarshalJSON() ([]byte, error)

                      type Document

                      type Document struct {
                      	// Content: The content of the input in string format. Cloud audit
                      	// logging exempt since it is based on user data.
                      	Content string `json:"content,omitempty"`
                      
                      	// GcsContentUri: The Google Cloud Storage URI where the file content is
                      	// located. This URI must be of the form: gs://bucket_name/object_name.
                      	// For more details, see
                      	// https://cloud.google.com/storage/docs/reference-uris. NOTE: Cloud
                      	// Storage object versioning is not supported.
                      	GcsContentUri string `json:"gcsContentUri,omitempty"`
                      
                      	// Language: The language of the document (if not specified, the
                      	// language is automatically detected). Both ISO and BCP-47 language
                      	// codes are accepted. Language Support
                      	// (https://cloud.google.com/natural-language/docs/languages) lists
                      	// currently supported languages for each API method. If the language
                      	// (either specified by the caller or automatically detected) is not
                      	// supported by the called API method, an `INVALID_ARGUMENT` error is
                      	// returned.
                      	Language string `json:"language,omitempty"`
                      
                      	// Type: Required. If the type is not set or is `TYPE_UNSPECIFIED`,
                      	// returns an `INVALID_ARGUMENT` error.
                      	//
                      	// Possible values:
                      	//   "TYPE_UNSPECIFIED" - The content type is not specified.
                      	//   "PLAIN_TEXT" - Plain text
                      	//   "HTML" - HTML
                      	Type string `json:"type,omitempty"`
                      
                      	// ForceSendFields is a list of field names (e.g. "Content") to
                      	// unconditionally include in API requests. By default, fields with
                      	// empty values are omitted from API requests. However, any non-pointer,
                      	// non-interface field appearing in ForceSendFields will be sent to the
                      	// server regardless of whether the field is empty or not. This may be
                      	// used to include empty fields in Patch requests.
                      	ForceSendFields []string `json:"-"`
                      
                      	// NullFields is a list of field names (e.g. "Content") to include in
                      	// API requests with the JSON null value. By default, fields with empty
                      	// values are omitted from API requests. However, any field with an
                      	// empty value appearing in NullFields will be sent to the server as
                      	// null. It is an error if a field in this list has a non-empty value.
                      	// This may be used to include null fields in Patch requests.
                      	NullFields []string `json:"-"`
                      }

                        Document: ################################################################ # Represents the input to API methods.

                        func (*Document) MarshalJSON

                        func (s *Document) MarshalJSON() ([]byte, error)

                        type DocumentsAnalyzeEntitiesCall

                        type DocumentsAnalyzeEntitiesCall struct {
                        	// contains filtered or unexported fields
                        }

                        func (*DocumentsAnalyzeEntitiesCall) Context

                          Context sets the context to be used in this call's Do method. Any pending HTTP request will be aborted if the provided context is canceled.

                          func (*DocumentsAnalyzeEntitiesCall) Do

                            Do executes the "language.documents.analyzeEntities" call. Exactly one of *AnalyzeEntitiesResponse or error will be non-nil. Any non-2xx status code is an error. Response headers are in either *AnalyzeEntitiesResponse.ServerResponse.Header or (if a response was returned at all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to check whether the returned error was because http.StatusNotModified was returned.

                            func (*DocumentsAnalyzeEntitiesCall) Fields

                              Fields allows partial responses to be retrieved. See https://developers.google.com/gdata/docs/2.0/basics#PartialResponse for more information.

                              func (*DocumentsAnalyzeEntitiesCall) Header

                                Header returns an http.Header that can be modified by the caller to add HTTP headers to the request.

                                type DocumentsAnalyzeSentimentCall

                                type DocumentsAnalyzeSentimentCall struct {
                                	// contains filtered or unexported fields
                                }

                                func (*DocumentsAnalyzeSentimentCall) Context

                                  Context sets the context to be used in this call's Do method. Any pending HTTP request will be aborted if the provided context is canceled.

                                  func (*DocumentsAnalyzeSentimentCall) Do

                                    Do executes the "language.documents.analyzeSentiment" call. Exactly one of *AnalyzeSentimentResponse or error will be non-nil. Any non-2xx status code is an error. Response headers are in either *AnalyzeSentimentResponse.ServerResponse.Header or (if a response was returned at all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to check whether the returned error was because http.StatusNotModified was returned.

                                    func (*DocumentsAnalyzeSentimentCall) Fields

                                      Fields allows partial responses to be retrieved. See https://developers.google.com/gdata/docs/2.0/basics#PartialResponse for more information.

                                      func (*DocumentsAnalyzeSentimentCall) Header

                                        Header returns an http.Header that can be modified by the caller to add HTTP headers to the request.

                                        type DocumentsAnalyzeSyntaxCall

                                        type DocumentsAnalyzeSyntaxCall struct {
                                        	// contains filtered or unexported fields
                                        }

                                        func (*DocumentsAnalyzeSyntaxCall) Context

                                          Context sets the context to be used in this call's Do method. Any pending HTTP request will be aborted if the provided context is canceled.

                                          func (*DocumentsAnalyzeSyntaxCall) Do

                                            Do executes the "language.documents.analyzeSyntax" call. Exactly one of *AnalyzeSyntaxResponse or error will be non-nil. Any non-2xx status code is an error. Response headers are in either *AnalyzeSyntaxResponse.ServerResponse.Header or (if a response was returned at all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to check whether the returned error was because http.StatusNotModified was returned.

                                            func (*DocumentsAnalyzeSyntaxCall) Fields

                                              Fields allows partial responses to be retrieved. See https://developers.google.com/gdata/docs/2.0/basics#PartialResponse for more information.

                                              func (*DocumentsAnalyzeSyntaxCall) Header

                                                Header returns an http.Header that can be modified by the caller to add HTTP headers to the request.

                                                type DocumentsAnnotateTextCall

                                                type DocumentsAnnotateTextCall struct {
                                                	// contains filtered or unexported fields
                                                }

                                                func (*DocumentsAnnotateTextCall) Context

                                                  Context sets the context to be used in this call's Do method. Any pending HTTP request will be aborted if the provided context is canceled.

                                                  func (*DocumentsAnnotateTextCall) Do

                                                    Do executes the "language.documents.annotateText" call. Exactly one of *AnnotateTextResponse or error will be non-nil. Any non-2xx status code is an error. Response headers are in either *AnnotateTextResponse.ServerResponse.Header or (if a response was returned at all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to check whether the returned error was because http.StatusNotModified was returned.

                                                    func (*DocumentsAnnotateTextCall) Fields

                                                      Fields allows partial responses to be retrieved. See https://developers.google.com/gdata/docs/2.0/basics#PartialResponse for more information.

                                                      func (*DocumentsAnnotateTextCall) Header

                                                        Header returns an http.Header that can be modified by the caller to add HTTP headers to the request.

                                                        type DocumentsService

                                                        type DocumentsService struct {
                                                        	// contains filtered or unexported fields
                                                        }

                                                        func NewDocumentsService

                                                        func NewDocumentsService(s *Service) *DocumentsService

                                                        func (*DocumentsService) AnalyzeEntities

                                                        func (r *DocumentsService) AnalyzeEntities(analyzeentitiesrequest *AnalyzeEntitiesRequest) *DocumentsAnalyzeEntitiesCall

                                                          AnalyzeEntities: Finds named entities (currently proper names and common nouns) in the text along with entity types, salience, mentions for each entity, and other properties.

                                                          func (*DocumentsService) AnalyzeSentiment

                                                          func (r *DocumentsService) AnalyzeSentiment(analyzesentimentrequest *AnalyzeSentimentRequest) *DocumentsAnalyzeSentimentCall

                                                            AnalyzeSentiment: Analyzes the sentiment of the provided text.

                                                            func (*DocumentsService) AnalyzeSyntax

                                                            func (r *DocumentsService) AnalyzeSyntax(analyzesyntaxrequest *AnalyzeSyntaxRequest) *DocumentsAnalyzeSyntaxCall

                                                              AnalyzeSyntax: Analyzes the syntax of the text and provides sentence boundaries and tokenization along with part of speech tags, dependency trees, and other properties.

                                                              func (*DocumentsService) AnnotateText

                                                              func (r *DocumentsService) AnnotateText(annotatetextrequest *AnnotateTextRequest) *DocumentsAnnotateTextCall

                                                                AnnotateText: A convenience method that provides all the features that analyzeSentiment, analyzeEntities, and analyzeSyntax provide in one call.

                                                                type Entity

                                                                type Entity struct {
                                                                	// Mentions: The mentions of this entity in the input document. The API
                                                                	// currently supports proper noun mentions.
                                                                	Mentions []*EntityMention `json:"mentions,omitempty"`
                                                                
                                                                	// Metadata: Metadata associated with the entity. Currently, Wikipedia
                                                                	// URLs and Knowledge Graph MIDs are provided, if available. The
                                                                	// associated keys are "wikipedia_url" and "mid", respectively.
                                                                	Metadata map[string]string `json:"metadata,omitempty"`
                                                                
                                                                	// Name: The representative name for the entity.
                                                                	Name string `json:"name,omitempty"`
                                                                
                                                                	// Salience: The salience score associated with the entity in the [0,
                                                                	// 1.0] range. The salience score for an entity provides information
                                                                	// about the importance or centrality of that entity to the entire
                                                                	// document text. Scores closer to 0 are less salient, while scores
                                                                	// closer to 1.0 are highly salient.
                                                                	Salience float64 `json:"salience,omitempty"`
                                                                
                                                                	// Type: The entity type.
                                                                	//
                                                                	// Possible values:
                                                                	//   "UNKNOWN" - Unknown
                                                                	//   "PERSON" - Person
                                                                	//   "LOCATION" - Location
                                                                	//   "ORGANIZATION" - Organization
                                                                	//   "EVENT" - Event
                                                                	//   "WORK_OF_ART" - Work of art
                                                                	//   "CONSUMER_GOOD" - Consumer goods
                                                                	//   "OTHER" - Other types
                                                                	Type string `json:"type,omitempty"`
                                                                
                                                                	// ForceSendFields is a list of field names (e.g. "Mentions") to
                                                                	// unconditionally include in API requests. By default, fields with
                                                                	// empty values are omitted from API requests. However, any non-pointer,
                                                                	// non-interface field appearing in ForceSendFields will be sent to the
                                                                	// server regardless of whether the field is empty or not. This may be
                                                                	// used to include empty fields in Patch requests.
                                                                	ForceSendFields []string `json:"-"`
                                                                
                                                                	// NullFields is a list of field names (e.g. "Mentions") to include in
                                                                	// API requests with the JSON null value. By default, fields with empty
                                                                	// values are omitted from API requests. However, any field with an
                                                                	// empty value appearing in NullFields will be sent to the server as
                                                                	// null. It is an error if a field in this list has a non-empty value.
                                                                	// This may be used to include null fields in Patch requests.
                                                                	NullFields []string `json:"-"`
                                                                }

                                                                  Entity: Represents a phrase in the text that is a known entity, such as a person, an organization, or location. The API associates information, such as salience and mentions, with entities.

                                                                  func (*Entity) MarshalJSON

                                                                  func (s *Entity) MarshalJSON() ([]byte, error)

                                                                  func (*Entity) UnmarshalJSON

                                                                  func (s *Entity) UnmarshalJSON(data []byte) error

                                                                  type EntityMention

                                                                  type EntityMention struct {
                                                                  	// Text: The mention text.
                                                                  	Text *TextSpan `json:"text,omitempty"`
                                                                  
                                                                  	// Type: The type of the entity mention.
                                                                  	//
                                                                  	// Possible values:
                                                                  	//   "TYPE_UNKNOWN" - Unknown
                                                                  	//   "PROPER" - Proper name
                                                                  	//   "COMMON" - Common noun (or noun compound)
                                                                  	Type string `json:"type,omitempty"`
                                                                  
                                                                  	// ForceSendFields is a list of field names (e.g. "Text") to
                                                                  	// unconditionally include in API requests. By default, fields with
                                                                  	// empty values are omitted from API requests. However, any non-pointer,
                                                                  	// non-interface field appearing in ForceSendFields will be sent to the
                                                                  	// server regardless of whether the field is empty or not. This may be
                                                                  	// used to include empty fields in Patch requests.
                                                                  	ForceSendFields []string `json:"-"`
                                                                  
                                                                  	// NullFields is a list of field names (e.g. "Text") to include in API
                                                                  	// requests with the JSON null value. By default, fields with empty
                                                                  	// values are omitted from API requests. However, any field with an
                                                                  	// empty value appearing in NullFields will be sent to the server as
                                                                  	// null. It is an error if a field in this list has a non-empty value.
                                                                  	// This may be used to include null fields in Patch requests.
                                                                  	NullFields []string `json:"-"`
                                                                  }

                                                                    EntityMention: Represents a mention for an entity in the text. Currently, proper noun mentions are supported.

                                                                    func (*EntityMention) MarshalJSON

                                                                    func (s *EntityMention) MarshalJSON() ([]byte, error)

                                                                    type Features

                                                                    type Features struct {
                                                                    	// ExtractDocumentSentiment: Extract document-level sentiment.
                                                                    	ExtractDocumentSentiment bool `json:"extractDocumentSentiment,omitempty"`
                                                                    
                                                                    	// ExtractEntities: Extract entities.
                                                                    	ExtractEntities bool `json:"extractEntities,omitempty"`
                                                                    
                                                                    	// ExtractSyntax: Extract syntax information.
                                                                    	ExtractSyntax bool `json:"extractSyntax,omitempty"`
                                                                    
                                                                    	// ForceSendFields is a list of field names (e.g.
                                                                    	// "ExtractDocumentSentiment") to unconditionally include in API
                                                                    	// requests. By default, fields with empty values are omitted from API
                                                                    	// requests. However, any non-pointer, non-interface field appearing in
                                                                    	// ForceSendFields will be sent to the server regardless of whether the
                                                                    	// field is empty or not. This may be used to include empty fields in
                                                                    	// Patch requests.
                                                                    	ForceSendFields []string `json:"-"`
                                                                    
                                                                    	// NullFields is a list of field names (e.g. "ExtractDocumentSentiment")
                                                                    	// to include in API requests with the JSON null value. By default,
                                                                    	// fields with empty values are omitted from API requests. However, any
                                                                    	// field with an empty value appearing in NullFields will be sent to the
                                                                    	// server as null. It is an error if a field in this list has a
                                                                    	// non-empty value. This may be used to include null fields in Patch
                                                                    	// requests.
                                                                    	NullFields []string `json:"-"`
                                                                    }

                                                                      Features: All available features for sentiment, syntax, and semantic analysis. Setting each one to true will enable that specific analysis for the input.

                                                                      func (*Features) MarshalJSON

                                                                      func (s *Features) MarshalJSON() ([]byte, error)

                                                                      type PartOfSpeech

                                                                      type PartOfSpeech struct {
                                                                      	// Aspect: The grammatical aspect.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "ASPECT_UNKNOWN" - Aspect is not applicable in the analyzed
                                                                      	// language or is not predicted.
                                                                      	//   "PERFECTIVE" - Perfective
                                                                      	//   "IMPERFECTIVE" - Imperfective
                                                                      	//   "PROGRESSIVE" - Progressive
                                                                      	Aspect string `json:"aspect,omitempty"`
                                                                      
                                                                      	// Case: The grammatical case.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "CASE_UNKNOWN" - Case is not applicable in the analyzed language or
                                                                      	// is not predicted.
                                                                      	//   "ACCUSATIVE" - Accusative
                                                                      	//   "ADVERBIAL" - Adverbial
                                                                      	//   "COMPLEMENTIVE" - Complementive
                                                                      	//   "DATIVE" - Dative
                                                                      	//   "GENITIVE" - Genitive
                                                                      	//   "INSTRUMENTAL" - Instrumental
                                                                      	//   "LOCATIVE" - Locative
                                                                      	//   "NOMINATIVE" - Nominative
                                                                      	//   "OBLIQUE" - Oblique
                                                                      	//   "PARTITIVE" - Partitive
                                                                      	//   "PREPOSITIONAL" - Prepositional
                                                                      	//   "REFLEXIVE_CASE" - Reflexive
                                                                      	//   "RELATIVE_CASE" - Relative
                                                                      	//   "VOCATIVE" - Vocative
                                                                      	Case string `json:"case,omitempty"`
                                                                      
                                                                      	// Form: The grammatical form.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "FORM_UNKNOWN" - Form is not applicable in the analyzed language or
                                                                      	// is not predicted.
                                                                      	//   "ADNOMIAL" - Adnomial
                                                                      	//   "AUXILIARY" - Auxiliary
                                                                      	//   "COMPLEMENTIZER" - Complementizer
                                                                      	//   "FINAL_ENDING" - Final ending
                                                                      	//   "GERUND" - Gerund
                                                                      	//   "REALIS" - Realis
                                                                      	//   "IRREALIS" - Irrealis
                                                                      	//   "SHORT" - Short form
                                                                      	//   "LONG" - Long form
                                                                      	//   "ORDER" - Order form
                                                                      	//   "SPECIFIC" - Specific form
                                                                      	Form string `json:"form,omitempty"`
                                                                      
                                                                      	// Gender: The grammatical gender.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "GENDER_UNKNOWN" - Gender is not applicable in the analyzed
                                                                      	// language or is not predicted.
                                                                      	//   "FEMININE" - Feminine
                                                                      	//   "MASCULINE" - Masculine
                                                                      	//   "NEUTER" - Neuter
                                                                      	Gender string `json:"gender,omitempty"`
                                                                      
                                                                      	// Mood: The grammatical mood.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "MOOD_UNKNOWN" - Mood is not applicable in the analyzed language or
                                                                      	// is not predicted.
                                                                      	//   "CONDITIONAL_MOOD" - Conditional
                                                                      	//   "IMPERATIVE" - Imperative
                                                                      	//   "INDICATIVE" - Indicative
                                                                      	//   "INTERROGATIVE" - Interrogative
                                                                      	//   "JUSSIVE" - Jussive
                                                                      	//   "SUBJUNCTIVE" - Subjunctive
                                                                      	Mood string `json:"mood,omitempty"`
                                                                      
                                                                      	// Number: The grammatical number.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "NUMBER_UNKNOWN" - Number is not applicable in the analyzed
                                                                      	// language or is not predicted.
                                                                      	//   "SINGULAR" - Singular
                                                                      	//   "PLURAL" - Plural
                                                                      	//   "DUAL" - Dual
                                                                      	Number string `json:"number,omitempty"`
                                                                      
                                                                      	// Person: The grammatical person.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "PERSON_UNKNOWN" - Person is not applicable in the analyzed
                                                                      	// language or is not predicted.
                                                                      	//   "FIRST" - First
                                                                      	//   "SECOND" - Second
                                                                      	//   "THIRD" - Third
                                                                      	//   "REFLEXIVE_PERSON" - Reflexive
                                                                      	Person string `json:"person,omitempty"`
                                                                      
                                                                      	// Proper: The grammatical properness.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "PROPER_UNKNOWN" - Proper is not applicable in the analyzed
                                                                      	// language or is not predicted.
                                                                      	//   "PROPER" - Proper
                                                                      	//   "NOT_PROPER" - Not proper
                                                                      	Proper string `json:"proper,omitempty"`
                                                                      
                                                                      	// Reciprocity: The grammatical reciprocity.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "RECIPROCITY_UNKNOWN" - Reciprocity is not applicable in the
                                                                      	// analyzed language or is not predicted.
                                                                      	//   "RECIPROCAL" - Reciprocal
                                                                      	//   "NON_RECIPROCAL" - Non-reciprocal
                                                                      	Reciprocity string `json:"reciprocity,omitempty"`
                                                                      
                                                                      	// Tag: The part of speech tag.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "UNKNOWN" - Unknown
                                                                      	//   "ADJ" - Adjective
                                                                      	//   "ADP" - Adposition (preposition and postposition)
                                                                      	//   "ADV" - Adverb
                                                                      	//   "CONJ" - Conjunction
                                                                      	//   "DET" - Determiner
                                                                      	//   "NOUN" - Noun (common and proper)
                                                                      	//   "NUM" - Cardinal number
                                                                      	//   "PRON" - Pronoun
                                                                      	//   "PRT" - Particle or other function word
                                                                      	//   "PUNCT" - Punctuation
                                                                      	//   "VERB" - Verb (all tenses and modes)
                                                                      	//   "X" - Other: foreign words, typos, abbreviations
                                                                      	//   "AFFIX" - Affix
                                                                      	Tag string `json:"tag,omitempty"`
                                                                      
                                                                      	// Tense: The grammatical tense.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "TENSE_UNKNOWN" - Tense is not applicable in the analyzed language
                                                                      	// or is not predicted.
                                                                      	//   "CONDITIONAL_TENSE" - Conditional
                                                                      	//   "FUTURE" - Future
                                                                      	//   "PAST" - Past
                                                                      	//   "PRESENT" - Present
                                                                      	//   "IMPERFECT" - Imperfect
                                                                      	//   "PLUPERFECT" - Pluperfect
                                                                      	Tense string `json:"tense,omitempty"`
                                                                      
                                                                      	// Voice: The grammatical voice.
                                                                      	//
                                                                      	// Possible values:
                                                                      	//   "VOICE_UNKNOWN" - Voice is not applicable in the analyzed language
                                                                      	// or is not predicted.
                                                                      	//   "ACTIVE" - Active
                                                                      	//   "CAUSATIVE" - Causative
                                                                      	//   "PASSIVE" - Passive
                                                                      	Voice string `json:"voice,omitempty"`
                                                                      
                                                                      	// ForceSendFields is a list of field names (e.g. "Aspect") to
                                                                      	// unconditionally include in API requests. By default, fields with
                                                                      	// empty values are omitted from API requests. However, any non-pointer,
                                                                      	// non-interface field appearing in ForceSendFields will be sent to the
                                                                      	// server regardless of whether the field is empty or not. This may be
                                                                      	// used to include empty fields in Patch requests.
                                                                      	ForceSendFields []string `json:"-"`
                                                                      
                                                                      	// NullFields is a list of field names (e.g. "Aspect") to include in API
                                                                      	// requests with the JSON null value. By default, fields with empty
                                                                      	// values are omitted from API requests. However, any field with an
                                                                      	// empty value appearing in NullFields will be sent to the server as
                                                                      	// null. It is an error if a field in this list has a non-empty value.
                                                                      	// This may be used to include null fields in Patch requests.
                                                                      	NullFields []string `json:"-"`
                                                                      }

                                                                        PartOfSpeech: Represents part of speech information for a token.

                                                                        func (*PartOfSpeech) MarshalJSON

                                                                        func (s *PartOfSpeech) MarshalJSON() ([]byte, error)

                                                                        type Sentence

                                                                        type Sentence struct {
                                                                        	// Sentiment: For calls to AnalyzeSentiment or if
                                                                        	// AnnotateTextRequest.Features.extract_document_sentiment is set to
                                                                        	// true, this field will contain the sentiment for the sentence.
                                                                        	Sentiment *Sentiment `json:"sentiment,omitempty"`
                                                                        
                                                                        	// Text: The sentence text.
                                                                        	Text *TextSpan `json:"text,omitempty"`
                                                                        
                                                                        	// ForceSendFields is a list of field names (e.g. "Sentiment") to
                                                                        	// unconditionally include in API requests. By default, fields with
                                                                        	// empty values are omitted from API requests. However, any non-pointer,
                                                                        	// non-interface field appearing in ForceSendFields will be sent to the
                                                                        	// server regardless of whether the field is empty or not. This may be
                                                                        	// used to include empty fields in Patch requests.
                                                                        	ForceSendFields []string `json:"-"`
                                                                        
                                                                        	// NullFields is a list of field names (e.g. "Sentiment") to include in
                                                                        	// API requests with the JSON null value. By default, fields with empty
                                                                        	// values are omitted from API requests. However, any field with an
                                                                        	// empty value appearing in NullFields will be sent to the server as
                                                                        	// null. It is an error if a field in this list has a non-empty value.
                                                                        	// This may be used to include null fields in Patch requests.
                                                                        	NullFields []string `json:"-"`
                                                                        }

                                                                          Sentence: Represents a sentence in the input document.

                                                                          func (*Sentence) MarshalJSON

                                                                          func (s *Sentence) MarshalJSON() ([]byte, error)

                                                                          type Sentiment

                                                                          type Sentiment struct {
                                                                          	// Magnitude: A non-negative number in the [0, +inf) range, which
                                                                          	// represents the absolute magnitude of sentiment regardless of score
                                                                          	// (positive or negative).
                                                                          	Magnitude float64 `json:"magnitude,omitempty"`
                                                                          
                                                                          	// Polarity: DEPRECATED FIELD - This field is being deprecated in favor
                                                                          	// of score. Please refer to our documentation at
                                                                          	// https://cloud.google.com/natural-language/docs for more information.
                                                                          	Polarity float64 `json:"polarity,omitempty"`
                                                                          
                                                                          	// Score: Sentiment score between -1.0 (negative sentiment) and 1.0
                                                                          	// (positive sentiment).
                                                                          	Score float64 `json:"score,omitempty"`
                                                                          
                                                                          	// ForceSendFields is a list of field names (e.g. "Magnitude") to
                                                                          	// unconditionally include in API requests. By default, fields with
                                                                          	// empty values are omitted from API requests. However, any non-pointer,
                                                                          	// non-interface field appearing in ForceSendFields will be sent to the
                                                                          	// server regardless of whether the field is empty or not. This may be
                                                                          	// used to include empty fields in Patch requests.
                                                                          	ForceSendFields []string `json:"-"`
                                                                          
                                                                          	// NullFields is a list of field names (e.g. "Magnitude") to include in
                                                                          	// API requests with the JSON null value. By default, fields with empty
                                                                          	// values are omitted from API requests. However, any field with an
                                                                          	// empty value appearing in NullFields will be sent to the server as
                                                                          	// null. It is an error if a field in this list has a non-empty value.
                                                                          	// This may be used to include null fields in Patch requests.
                                                                          	NullFields []string `json:"-"`
                                                                          }

                                                                            Sentiment: Represents the feeling associated with the entire text or entities in the text.

                                                                            func (*Sentiment) MarshalJSON

                                                                            func (s *Sentiment) MarshalJSON() ([]byte, error)

                                                                            func (*Sentiment) UnmarshalJSON

                                                                            func (s *Sentiment) UnmarshalJSON(data []byte) error

                                                                            type Service

                                                                            type Service struct {
                                                                            	BasePath  string // API endpoint base URL
                                                                            	UserAgent string // optional additional User-Agent fragment
                                                                            
                                                                            	Documents *DocumentsService
                                                                            	// contains filtered or unexported fields
                                                                            }

                                                                            func New

                                                                            func New(client *http.Client) (*Service, error)

                                                                              New creates a new Service. It uses the provided http.Client for requests.

                                                                              Deprecated: please use NewService instead. To provide a custom HTTP client, use option.WithHTTPClient. If you are using google.golang.org/api/googleapis/transport.APIKey, use option.WithAPIKey with NewService instead.

                                                                              func NewService

                                                                              func NewService(ctx context.Context, opts ...option.ClientOption) (*Service, error)

                                                                                NewService creates a new Service.

                                                                                type Status

                                                                                type Status struct {
                                                                                	// Code: The status code, which should be an enum value of
                                                                                	// google.rpc.Code.
                                                                                	Code int64 `json:"code,omitempty"`
                                                                                
                                                                                	// Details: A list of messages that carry the error details. There is a
                                                                                	// common set of message types for APIs to use.
                                                                                	Details []googleapi.RawMessage `json:"details,omitempty"`
                                                                                
                                                                                	// Message: A developer-facing error message, which should be in
                                                                                	// English. Any user-facing error message should be localized and sent
                                                                                	// in the google.rpc.Status.details field, or localized by the client.
                                                                                	Message string `json:"message,omitempty"`
                                                                                
                                                                                	// ForceSendFields is a list of field names (e.g. "Code") to
                                                                                	// unconditionally include in API requests. By default, fields with
                                                                                	// empty values are omitted from API requests. However, any non-pointer,
                                                                                	// non-interface field appearing in ForceSendFields will be sent to the
                                                                                	// server regardless of whether the field is empty or not. This may be
                                                                                	// used to include empty fields in Patch requests.
                                                                                	ForceSendFields []string `json:"-"`
                                                                                
                                                                                	// NullFields is a list of field names (e.g. "Code") to include in API
                                                                                	// requests with the JSON null value. By default, fields with empty
                                                                                	// values are omitted from API requests. However, any field with an
                                                                                	// empty value appearing in NullFields will be sent to the server as
                                                                                	// null. It is an error if a field in this list has a non-empty value.
                                                                                	// This may be used to include null fields in Patch requests.
                                                                                	NullFields []string `json:"-"`
                                                                                }

                                                                                  Status: The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by gRPC (https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the API Design Guide (https://cloud.google.com/apis/design/errors).

                                                                                  func (*Status) MarshalJSON

                                                                                  func (s *Status) MarshalJSON() ([]byte, error)

                                                                                  type TextSpan

                                                                                  type TextSpan struct {
                                                                                  	// BeginOffset: The API calculates the beginning offset of the content
                                                                                  	// in the original document according to the EncodingType specified in
                                                                                  	// the API request.
                                                                                  	BeginOffset int64 `json:"beginOffset,omitempty"`
                                                                                  
                                                                                  	// Content: The content of the output text.
                                                                                  	Content string `json:"content,omitempty"`
                                                                                  
                                                                                  	// ForceSendFields is a list of field names (e.g. "BeginOffset") to
                                                                                  	// unconditionally include in API requests. By default, fields with
                                                                                  	// empty values are omitted from API requests. However, any non-pointer,
                                                                                  	// non-interface field appearing in ForceSendFields will be sent to the
                                                                                  	// server regardless of whether the field is empty or not. This may be
                                                                                  	// used to include empty fields in Patch requests.
                                                                                  	ForceSendFields []string `json:"-"`
                                                                                  
                                                                                  	// NullFields is a list of field names (e.g. "BeginOffset") to include
                                                                                  	// in API requests with the JSON null value. By default, fields with
                                                                                  	// empty values are omitted from API requests. However, any field with
                                                                                  	// an empty value appearing in NullFields will be sent to the server as
                                                                                  	// null. It is an error if a field in this list has a non-empty value.
                                                                                  	// This may be used to include null fields in Patch requests.
                                                                                  	NullFields []string `json:"-"`
                                                                                  }

                                                                                    TextSpan: Represents an output piece of text.

                                                                                    func (*TextSpan) MarshalJSON

                                                                                    func (s *TextSpan) MarshalJSON() ([]byte, error)

                                                                                    type Token

                                                                                    type Token struct {
                                                                                    	// DependencyEdge: Dependency tree parse for this token.
                                                                                    	DependencyEdge *DependencyEdge `json:"dependencyEdge,omitempty"`
                                                                                    
                                                                                    	// Lemma: Lemma (https://en.wikipedia.org/wiki/Lemma_%28morphology%29)
                                                                                    	// of the token.
                                                                                    	Lemma string `json:"lemma,omitempty"`
                                                                                    
                                                                                    	// PartOfSpeech: Parts of speech tag for this token.
                                                                                    	PartOfSpeech *PartOfSpeech `json:"partOfSpeech,omitempty"`
                                                                                    
                                                                                    	// Text: The token text.
                                                                                    	Text *TextSpan `json:"text,omitempty"`
                                                                                    
                                                                                    	// ForceSendFields is a list of field names (e.g. "DependencyEdge") to
                                                                                    	// unconditionally include in API requests. By default, fields with
                                                                                    	// empty values are omitted from API requests. However, any non-pointer,
                                                                                    	// non-interface field appearing in ForceSendFields will be sent to the
                                                                                    	// server regardless of whether the field is empty or not. This may be
                                                                                    	// used to include empty fields in Patch requests.
                                                                                    	ForceSendFields []string `json:"-"`
                                                                                    
                                                                                    	// NullFields is a list of field names (e.g. "DependencyEdge") to
                                                                                    	// include in API requests with the JSON null value. By default, fields
                                                                                    	// with empty values are omitted from API requests. However, any field
                                                                                    	// with an empty value appearing in NullFields will be sent to the
                                                                                    	// server as null. It is an error if a field in this list has a
                                                                                    	// non-empty value. This may be used to include null fields in Patch
                                                                                    	// requests.
                                                                                    	NullFields []string `json:"-"`
                                                                                    }

                                                                                      Token: Represents the smallest syntactic building block of the text.

                                                                                      func (*Token) MarshalJSON

                                                                                      func (s *Token) MarshalJSON() ([]byte, error)

                                                                                      Source Files