Gzip returns a Handler that adds gzip compression to all requests. Make sure
to include the gzip middleware above other middleware that alter the response
body (like the render middleware).
type Options struct {
// CompressionLevel indicates the compression level, possible values are between// 0 to 9 (from no compression to best compression). Default is 4.
CompressionLevel int
}
Options represents a struct for specifying configuration options for the gzip
middleware.