Imports go.opentelemetry.io/otel go.opentelemetry.io/otel/attribute go.opentelemetry.io/otel/internal/global Imports in module “go.opentelemetry.io/otel/metric” go.opentelemetry.io/otel/metric go.opentelemetry.io/otel/metric/instrument Standard library imports container/list context errors sync sync/atomic