// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Code generated file. DO NOT EDIT.

// Package speech provides access to the Cloud Speech-to-Text API.
//
// This package is DEPRECATED. Use package cloud.google.com/go/speech/apiv1 instead.
//
// For product documentation, see: https://cloud.google.com/speech-to-text/docs/quickstart-protocol
//
// Creating a client
//
// Usage example:
//
//   import "google.golang.org/api/speech/v2beta"
//   ...
//   ctx := context.Background()
//   speechService, err := speech.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
//
// To use an API key for authentication (note: some APIs do not support API keys), use option.WithAPIKey:
//
//   speechService, err := speech.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, ...)
//   speechService, err := speech.NewService(ctx, option.WithTokenSource(config.TokenSource(ctx, token)))
//
// See https://godoc.org/google.golang.org/api/option/ for details on options.
package speech // import "google.golang.org/api/speech/v2beta"

import (
	"bytes"
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"net/http"
	"net/url"
	"strconv"
	"strings"

	googleapi "google.golang.org/api/googleapi"
	gensupport "google.golang.org/api/internal/gensupport"
	option "google.golang.org/api/option"
	htransport "google.golang.org/api/transport/http"
)

// Always reference these packages, just in case the auto-generated code
// below doesn't.
var _ = bytes.NewBuffer
var _ = strconv.Itoa
var _ = fmt.Sprintf
var _ = json.NewDecoder
var _ = io.Copy
var _ = url.Parse
var _ = gensupport.MarshalJSON
var _ = googleapi.Version
var _ = errors.New
var _ = strings.Replace
var _ = context.Canceled

const apiId = "speech:v2beta"
const apiName = "speech"
const apiVersion = "v2beta"
const basePath = "https://speech.googleapis.com/"

// OAuth2 scopes used by this API.
const (
	// View and manage your data across Google Cloud Platform services
	CloudPlatformScope = "https://www.googleapis.com/auth/cloud-platform"
)

// NewService creates a new Service.
func NewService(ctx context.Context, opts ...option.ClientOption) (*Service, error) {
	scopesOption := option.WithScopes(
		"https://www.googleapis.com/auth/cloud-platform",
	)
	// NOTE: prepend, so we don't override user-specified scopes.
	opts = append([]option.ClientOption{scopesOption}, opts...)
	client, endpoint, err := htransport.NewClient(ctx, opts...)
	if err != nil {
		return nil, err
	}
	s, err := New(client)
	if err != nil {
		return nil, err
	}
	if endpoint != "" {
		s.BasePath = endpoint
	}
	return s, nil
}

// 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 New(client *http.Client) (*Service, error) {
	if client == nil {
		return nil, errors.New("client is nil")
	}
	s := &Service{client: client, BasePath: basePath}
	s.Projects = NewProjectsService(s)
	return s, nil
}

type Service struct {
	client    *http.Client
	BasePath  string // API endpoint base URL
	UserAgent string // optional additional User-Agent fragment

	Projects *ProjectsService
}

func (s *Service) userAgent() string {
	if s.UserAgent == "" {
		return googleapi.UserAgent
	}
	return googleapi.UserAgent + " " + s.UserAgent
}

func NewProjectsService(s *Service) *ProjectsService {
	rs := &ProjectsService{s: s}
	rs.Locations = NewProjectsLocationsService(s)
	return rs
}

type ProjectsService struct {
	s *Service

	Locations *ProjectsLocationsService
}

func NewProjectsLocationsService(s *Service) *ProjectsLocationsService {
	rs := &ProjectsLocationsService{s: s}
	rs.Operations = NewProjectsLocationsOperationsService(s)
	return rs
}

type ProjectsLocationsService struct {
	s *Service

	Operations *ProjectsLocationsOperationsService
}

func NewProjectsLocationsOperationsService(s *Service) *ProjectsLocationsOperationsService {
	rs := &ProjectsLocationsOperationsService{s: s}
	return rs
}

type ProjectsLocationsOperationsService struct {
	s *Service
}

// ListOperationsResponse: The response message for
// Operations.ListOperations.
type ListOperationsResponse struct {
	// NextPageToken: The standard List next-page token.
	NextPageToken string `json:"nextPageToken,omitempty"`

	// Operations: A list of operations that matches the specified filter in
	// the request.
	Operations []*Operation `json:"operations,omitempty"`

	// ServerResponse contains the HTTP response code and headers from the
	// server.
	googleapi.ServerResponse `json:"-"`

	// ForceSendFields is a list of field names (e.g. "NextPageToken") 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. "NextPageToken") 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:"-"`
}

func (s *ListOperationsResponse) MarshalJSON() ([]byte, error) {
	type NoMethod ListOperationsResponse
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// LongRunningRecognizeMetadata: Describes the progress of a
// long-running `LongRunningRecognize` call. It is
// included in the `metadata` field of the `Operation` returned by
// the
// `GetOperation` call of the `google::longrunning::Operations` service.
type LongRunningRecognizeMetadata struct {
	// LastUpdateTime: Output only. Time of the most recent processing
	// update.
	LastUpdateTime string `json:"lastUpdateTime,omitempty"`

	// ProgressPercent: Output only. Approximate percentage of audio
	// processed thus far. Guaranteed to be 100
	// when the audio is fully processed and the results are available.
	ProgressPercent int64 `json:"progressPercent,omitempty"`

	// StartTime: Output only. Time when the request was received.
	StartTime string `json:"startTime,omitempty"`

	// ForceSendFields is a list of field names (e.g. "LastUpdateTime") 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. "LastUpdateTime") 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:"-"`
}

func (s *LongRunningRecognizeMetadata) MarshalJSON() ([]byte, error) {
	type NoMethod LongRunningRecognizeMetadata
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// LongRunningRecognizeResponse: The only message returned to the client
// by the `LongRunningRecognize` method.
// It contains the result as zero or more sequential
// SpeechRecognitionResult
// messages. It is included in the `result.response` field of the
// `Operation`
// returned by the `GetOperation` call of the
// `google::longrunning::Operations`
// service.
type LongRunningRecognizeResponse struct {
	// Results: Output only. Sequential list of transcription results
	// corresponding to
	// sequential portions of audio.
	Results []*SpeechRecognitionResult `json:"results,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Results") 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. "Results") 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:"-"`
}

func (s *LongRunningRecognizeResponse) MarshalJSON() ([]byte, error) {
	type NoMethod LongRunningRecognizeResponse
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// Operation: This resource represents a long-running operation that is
// the result of a
// network API call.
type Operation struct {
	// Done: If the value is `false`, it means the operation is still in
	// progress.
	// If `true`, the operation is completed, and either `error` or
	// `response` is
	// available.
	Done bool `json:"done,omitempty"`

	// Error: The error result of the operation in case of failure or
	// cancellation.
	Error *Status `json:"error,omitempty"`

	// Metadata: Service-specific metadata associated with the operation.
	// It typically
	// contains progress information and common metadata such as create
	// time.
	// Some services might not provide such metadata.  Any method that
	// returns a
	// long-running operation should document the metadata type, if any.
	Metadata googleapi.RawMessage `json:"metadata,omitempty"`

	// Name: The server-assigned name, which is only unique within the same
	// service that
	// originally returns it. If you use the default HTTP mapping,
	// the
	// `name` should be a resource name ending with
	// `operations/{unique_id}`.
	Name string `json:"name,omitempty"`

	// Response: The normal response of the operation in case of success.
	// If the original
	// method returns no data on success, such as `Delete`, the response
	// is
	// `google.protobuf.Empty`.  If the original method is
	// standard
	// `Get`/`Create`/`Update`, the response should be the resource.  For
	// other
	// methods, the response should have the type `XxxResponse`, where
	// `Xxx`
	// is the original method name.  For example, if the original method
	// name
	// is `TakeSnapshot()`, the inferred response type
	// is
	// `TakeSnapshotResponse`.
	Response googleapi.RawMessage `json:"response,omitempty"`

	// ServerResponse contains the HTTP response code and headers from the
	// server.
	googleapi.ServerResponse `json:"-"`

	// ForceSendFields is a list of field names (e.g. "Done") 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. "Done") 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:"-"`
}

func (s *Operation) MarshalJSON() ([]byte, error) {
	type NoMethod Operation
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// SpeechRecognitionAlternative: Alternative hypotheses (a.k.a. n-best
// list).
type SpeechRecognitionAlternative struct {
	// Confidence: Output only. The confidence estimate between 0.0 and 1.0.
	// A higher number
	// indicates an estimated greater likelihood that the recognized words
	// are
	// correct. This field is set only for the top alternative of a
	// non-streaming
	// result or, of a streaming result where `is_final=true`.
	// This field is not guaranteed to be accurate and users should not rely
	// on it
	// to be always provided.
	// The default of 0.0 is a sentinel value indicating `confidence` was
	// not set.
	Confidence float64 `json:"confidence,omitempty"`

	// Transcript: Output only. Transcript text representing the words that
	// the user spoke.
	Transcript string `json:"transcript,omitempty"`

	// Words: Output only. A list of word-specific information for each
	// recognized word.
	// Note: When `enable_speaker_diarization` is true, you will see all the
	// words
	// from the beginning of the audio.
	Words []*WordInfo `json:"words,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Confidence") 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. "Confidence") 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:"-"`
}

func (s *SpeechRecognitionAlternative) MarshalJSON() ([]byte, error) {
	type NoMethod SpeechRecognitionAlternative
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

func (s *SpeechRecognitionAlternative) UnmarshalJSON(data []byte) error {
	type NoMethod SpeechRecognitionAlternative
	var s1 struct {
		Confidence gensupport.JSONFloat64 `json:"confidence"`
		*NoMethod
	}
	s1.NoMethod = (*NoMethod)(s)
	if err := json.Unmarshal(data, &s1); err != nil {
		return err
	}
	s.Confidence = float64(s1.Confidence)
	return nil
}

// SpeechRecognitionResult: A speech recognition result corresponding to
// a portion of the audio.
type SpeechRecognitionResult struct {
	// Alternatives: Output only. May contain one or more recognition
	// hypotheses (up to the
	// maximum specified in `max_alternatives`).
	// These alternatives are ordered in terms of accuracy, with the top
	// (first)
	// alternative being the most probable, as ranked by the recognizer.
	Alternatives []*SpeechRecognitionAlternative `json:"alternatives,omitempty"`

	// ChannelTag: Output only. For multi-channel audio, this is the channel
	// number corresponding to the
	// recognized result for the audio from that channel.
	// For `audio_channel_count` = N, its output values can range from `1`
	// to `N`.
	ChannelTag int64 `json:"channelTag,omitempty"`

	// LanguageCode: Output only.
	// The
	// [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag
	// of the
	// language in this result. This language code was detected to have the
	// most
	// likelihood of being spoken in the audio.
	LanguageCode string `json:"languageCode,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Alternatives") 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. "Alternatives") 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:"-"`
}

func (s *SpeechRecognitionResult) MarshalJSON() ([]byte, error) {
	type NoMethod SpeechRecognitionResult
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// 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).
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:"-"`
}

func (s *Status) MarshalJSON() ([]byte, error) {
	type NoMethod Status
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

// WordInfo: Word-specific information for recognized words.
type WordInfo struct {
	// Confidence: Output only. The confidence estimate between 0.0 and 1.0.
	// A higher number
	// indicates an estimated greater likelihood that the recognized words
	// are
	// correct. This field is set only for the top alternative of a
	// non-streaming
	// result or, of a streaming result where `is_final=true`.
	// This field is not guaranteed to be accurate and users should not rely
	// on it
	// to be always provided.
	// The default of 0.0 is a sentinel value indicating `confidence` was
	// not set.
	Confidence float64 `json:"confidence,omitempty"`

	// EndOffset: Output only. Time offset relative to the beginning of the
	// audio,
	// and corresponding to the end of the spoken word.
	// This field is only set if `enable_word_time_offsets=true` and only
	// in the top hypothesis.
	// This is an experimental feature and the accuracy of the time offset
	// can
	// vary.
	EndOffset string `json:"endOffset,omitempty"`

	// SpeakerTag: Output only. A distinct integer value is assigned for
	// every speaker within
	// the audio. This field specifies which one of those speakers was
	// detected to
	// have spoken this word. Value ranges from `1`
	// to
	// `diarization_speaker_count`. speaker_tag is set
	// if
	// `enable_speaker_diarization` = `true` and only in the top
	// alternative.
	SpeakerTag int64 `json:"speakerTag,omitempty"`

	// StartOffset: Output only. Time offset relative to the beginning of
	// the audio,
	// and corresponding to the start of the spoken word.
	// This field is only set if `enable_word_time_offsets=true` and only
	// in the top hypothesis.
	// This is an experimental feature and the accuracy of the time offset
	// can
	// vary.
	StartOffset string `json:"startOffset,omitempty"`

	// Word: Output only. The word corresponding to this set of information.
	Word string `json:"word,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Confidence") 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. "Confidence") 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:"-"`
}

func (s *WordInfo) MarshalJSON() ([]byte, error) {
	type NoMethod WordInfo
	raw := NoMethod(*s)
	return gensupport.MarshalJSON(raw, s.ForceSendFields, s.NullFields)
}

func (s *WordInfo) UnmarshalJSON(data []byte) error {
	type NoMethod WordInfo
	var s1 struct {
		Confidence gensupport.JSONFloat64 `json:"confidence"`
		*NoMethod
	}
	s1.NoMethod = (*NoMethod)(s)
	if err := json.Unmarshal(data, &s1); err != nil {
		return err
	}
	s.Confidence = float64(s1.Confidence)
	return nil
}

// method id "speech.projects.locations.operations.get":

type ProjectsLocationsOperationsGetCall struct {
	s            *Service
	name         string
	urlParams_   gensupport.URLParams
	ifNoneMatch_ string
	ctx_         context.Context
	header_      http.Header
}

// Get: Gets the latest state of a long-running operation.  Clients can
// use this
// method to poll the operation result at intervals as recommended by
// the API
// service.
func (r *ProjectsLocationsOperationsService) Get(name string) *ProjectsLocationsOperationsGetCall {
	c := &ProjectsLocationsOperationsGetCall{s: r.s, urlParams_: make(gensupport.URLParams)}
	c.name = name
	return c
}

// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *ProjectsLocationsOperationsGetCall) Fields(s ...googleapi.Field) *ProjectsLocationsOperationsGetCall {
	c.urlParams_.Set("fields", googleapi.CombineFields(s))
	return c
}

// IfNoneMatch sets the optional parameter which makes the operation
// fail if the object's ETag matches the given value. This is useful for
// getting updates only after the object has changed since the last
// request. Use googleapi.IsNotModified to check whether the response
// error from Do is the result of In-None-Match.
func (c *ProjectsLocationsOperationsGetCall) IfNoneMatch(entityTag string) *ProjectsLocationsOperationsGetCall {
	c.ifNoneMatch_ = entityTag
	return c
}

// 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 (c *ProjectsLocationsOperationsGetCall) Context(ctx context.Context) *ProjectsLocationsOperationsGetCall {
	c.ctx_ = ctx
	return c
}

// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *ProjectsLocationsOperationsGetCall) Header() http.Header {
	if c.header_ == nil {
		c.header_ = make(http.Header)
	}
	return c.header_
}

func (c *ProjectsLocationsOperationsGetCall) doRequest(alt string) (*http.Response, error) {
	reqHeaders := make(http.Header)
	reqHeaders.Set("x-goog-api-client", "gl-go/1.11.0 gdcl/20191007")
	for k, v := range c.header_ {
		reqHeaders[k] = v
	}
	reqHeaders.Set("User-Agent", c.s.userAgent())
	if c.ifNoneMatch_ != "" {
		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
	}
	var body io.Reader = nil
	c.urlParams_.Set("alt", alt)
	c.urlParams_.Set("prettyPrint", "false")
	urls := googleapi.ResolveRelative(c.s.BasePath, "v2beta/{+name}")
	urls += "?" + c.urlParams_.Encode()
	req, err := http.NewRequest("GET", urls, body)
	if err != nil {
		return nil, err
	}
	req.Header = reqHeaders
	googleapi.Expand(req.URL, map[string]string{
		"name": c.name,
	})
	return gensupport.SendRequest(c.ctx_, c.s.client, req)
}

// Do executes the "speech.projects.locations.operations.get" call.
// Exactly one of *Operation or error will be non-nil. Any non-2xx
// status code is an error. Response headers are in either
// *Operation.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 (c *ProjectsLocationsOperationsGetCall) Do(opts ...googleapi.CallOption) (*Operation, error) {
	gensupport.SetOptions(c.urlParams_, opts...)
	res, err := c.doRequest("json")
	if res != nil && res.StatusCode == http.StatusNotModified {
		if res.Body != nil {
			res.Body.Close()
		}
		return nil, &googleapi.Error{
			Code:   res.StatusCode,
			Header: res.Header,
		}
	}
	if err != nil {
		return nil, err
	}
	defer googleapi.CloseBody(res)
	if err := googleapi.CheckResponse(res); err != nil {
		return nil, err
	}
	ret := &Operation{
		ServerResponse: googleapi.ServerResponse{
			Header:         res.Header,
			HTTPStatusCode: res.StatusCode,
		},
	}
	target := &ret
	if err := gensupport.DecodeResponse(target, res); err != nil {
		return nil, err
	}
	return ret, nil
	// {
	//   "description": "Gets the latest state of a long-running operation.  Clients can use this\nmethod to poll the operation result at intervals as recommended by the API\nservice.",
	//   "flatPath": "v2beta/projects/{projectsId}/locations/{locationsId}/operations/{operationsId}",
	//   "httpMethod": "GET",
	//   "id": "speech.projects.locations.operations.get",
	//   "parameterOrder": [
	//     "name"
	//   ],
	//   "parameters": {
	//     "name": {
	//       "description": "The name of the operation resource.",
	//       "location": "path",
	//       "pattern": "^projects/[^/]+/locations/[^/]+/operations/[^/]+$",
	//       "required": true,
	//       "type": "string"
	//     }
	//   },
	//   "path": "v2beta/{+name}",
	//   "response": {
	//     "$ref": "Operation"
	//   },
	//   "scopes": [
	//     "https://www.googleapis.com/auth/cloud-platform"
	//   ]
	// }

}

// method id "speech.projects.locations.operations.list":

type ProjectsLocationsOperationsListCall struct {
	s            *Service
	name         string
	urlParams_   gensupport.URLParams
	ifNoneMatch_ string
	ctx_         context.Context
	header_      http.Header
}

// List: Lists operations that match the specified filter in the
// request. If the
// server doesn't support this method, it returns
// `UNIMPLEMENTED`.
//
// NOTE: the `name` binding allows API services to override the
// binding
// to use different resource name schemes, such as `users/*/operations`.
// To
// override the binding, API services can add a binding such
// as
// "/v1/{name=users/*}/operations" to their service configuration.
// For backwards compatibility, the default name includes the
// operations
// collection id, however overriding users must ensure the name
// binding
// is the parent resource, without the operations collection id.
func (r *ProjectsLocationsOperationsService) List(name string) *ProjectsLocationsOperationsListCall {
	c := &ProjectsLocationsOperationsListCall{s: r.s, urlParams_: make(gensupport.URLParams)}
	c.name = name
	return c
}

// Filter sets the optional parameter "filter": The standard list
// filter.
func (c *ProjectsLocationsOperationsListCall) Filter(filter string) *ProjectsLocationsOperationsListCall {
	c.urlParams_.Set("filter", filter)
	return c
}

// PageSize sets the optional parameter "pageSize": The standard list
// page size.
func (c *ProjectsLocationsOperationsListCall) PageSize(pageSize int64) *ProjectsLocationsOperationsListCall {
	c.urlParams_.Set("pageSize", fmt.Sprint(pageSize))
	return c
}

// PageToken sets the optional parameter "pageToken": The standard list
// page token.
func (c *ProjectsLocationsOperationsListCall) PageToken(pageToken string) *ProjectsLocationsOperationsListCall {
	c.urlParams_.Set("pageToken", pageToken)
	return c
}

// Fields allows partial responses to be retrieved. See
// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
// for more information.
func (c *ProjectsLocationsOperationsListCall) Fields(s ...googleapi.Field) *ProjectsLocationsOperationsListCall {
	c.urlParams_.Set("fields", googleapi.CombineFields(s))
	return c
}

// IfNoneMatch sets the optional parameter which makes the operation
// fail if the object's ETag matches the given value. This is useful for
// getting updates only after the object has changed since the last
// request. Use googleapi.IsNotModified to check whether the response
// error from Do is the result of In-None-Match.
func (c *ProjectsLocationsOperationsListCall) IfNoneMatch(entityTag string) *ProjectsLocationsOperationsListCall {
	c.ifNoneMatch_ = entityTag
	return c
}

// 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 (c *ProjectsLocationsOperationsListCall) Context(ctx context.Context) *ProjectsLocationsOperationsListCall {
	c.ctx_ = ctx
	return c
}

// Header returns an http.Header that can be modified by the caller to
// add HTTP headers to the request.
func (c *ProjectsLocationsOperationsListCall) Header() http.Header {
	if c.header_ == nil {
		c.header_ = make(http.Header)
	}
	return c.header_
}

func (c *ProjectsLocationsOperationsListCall) doRequest(alt string) (*http.Response, error) {
	reqHeaders := make(http.Header)
	reqHeaders.Set("x-goog-api-client", "gl-go/1.11.0 gdcl/20191007")
	for k, v := range c.header_ {
		reqHeaders[k] = v
	}
	reqHeaders.Set("User-Agent", c.s.userAgent())
	if c.ifNoneMatch_ != "" {
		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
	}
	var body io.Reader = nil
	c.urlParams_.Set("alt", alt)
	c.urlParams_.Set("prettyPrint", "false")
	urls := googleapi.ResolveRelative(c.s.BasePath, "v2beta/{+name}/operations")
	urls += "?" + c.urlParams_.Encode()
	req, err := http.NewRequest("GET", urls, body)
	if err != nil {
		return nil, err
	}
	req.Header = reqHeaders
	googleapi.Expand(req.URL, map[string]string{
		"name": c.name,
	})
	return gensupport.SendRequest(c.ctx_, c.s.client, req)
}

// Do executes the "speech.projects.locations.operations.list" call.
// Exactly one of *ListOperationsResponse or error will be non-nil. Any
// non-2xx status code is an error. Response headers are in either
// *ListOperationsResponse.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 (c *ProjectsLocationsOperationsListCall) Do(opts ...googleapi.CallOption) (*ListOperationsResponse, error) {
	gensupport.SetOptions(c.urlParams_, opts...)
	res, err := c.doRequest("json")
	if res != nil && res.StatusCode == http.StatusNotModified {
		if res.Body != nil {
			res.Body.Close()
		}
		return nil, &googleapi.Error{
			Code:   res.StatusCode,
			Header: res.Header,
		}
	}
	if err != nil {
		return nil, err
	}
	defer googleapi.CloseBody(res)
	if err := googleapi.CheckResponse(res); err != nil {
		return nil, err
	}
	ret := &ListOperationsResponse{
		ServerResponse: googleapi.ServerResponse{
			Header:         res.Header,
			HTTPStatusCode: res.StatusCode,
		},
	}
	target := &ret
	if err := gensupport.DecodeResponse(target, res); err != nil {
		return nil, err
	}
	return ret, nil
	// {
	//   "description": "Lists operations that match the specified filter in the request. If the\nserver doesn't support this method, it returns `UNIMPLEMENTED`.\n\nNOTE: the `name` binding allows API services to override the binding\nto use different resource name schemes, such as `users/*/operations`. To\noverride the binding, API services can add a binding such as\n`\"/v1/{name=users/*}/operations\"` to their service configuration.\nFor backwards compatibility, the default name includes the operations\ncollection id, however overriding users must ensure the name binding\nis the parent resource, without the operations collection id.",
	//   "flatPath": "v2beta/projects/{projectsId}/locations/{locationsId}/operations",
	//   "httpMethod": "GET",
	//   "id": "speech.projects.locations.operations.list",
	//   "parameterOrder": [
	//     "name"
	//   ],
	//   "parameters": {
	//     "filter": {
	//       "description": "The standard list filter.",
	//       "location": "query",
	//       "type": "string"
	//     },
	//     "name": {
	//       "description": "The name of the operation's parent resource.",
	//       "location": "path",
	//       "pattern": "^projects/[^/]+/locations/[^/]+$",
	//       "required": true,
	//       "type": "string"
	//     },
	//     "pageSize": {
	//       "description": "The standard list page size.",
	//       "format": "int32",
	//       "location": "query",
	//       "type": "integer"
	//     },
	//     "pageToken": {
	//       "description": "The standard list page token.",
	//       "location": "query",
	//       "type": "string"
	//     }
	//   },
	//   "path": "v2beta/{+name}/operations",
	//   "response": {
	//     "$ref": "ListOperationsResponse"
	//   },
	//   "scopes": [
	//     "https://www.googleapis.com/auth/cloud-platform"
	//   ]
	// }

}

// Pages invokes f for each page of results.
// A non-nil error returned from f will halt the iteration.
// The provided context supersedes any context provided to the Context method.
func (c *ProjectsLocationsOperationsListCall) Pages(ctx context.Context, f func(*ListOperationsResponse) error) error {
	c.ctx_ = ctx
	defer c.PageToken(c.urlParams_.Get("pageToken")) // reset paging to original point
	for {
		x, err := c.Do()
		if err != nil {
			return err
		}
		if err := f(x); err != nil {
			return err
		}
		if x.NextPageToken == "" {
			return nil
		}
		c.PageToken(x.NextPageToken)
	}
}
