texttospeech

type AudioConfig struct {
	// AudioEncoding: Required. The format of the audio byte stream.
	//
	// Possible values:
	//   "AUDIO_ENCODING_UNSPECIFIED" - Not specified. Will return result
	// google.rpc.Code.INVALID_ARGUMENT.
	//   "LINEAR16" - Uncompressed 16-bit signed little-endian samples
	// (Linear PCM). Audio content returned as LINEAR16 also contains a WAV
	// header.
	//   "MP3" - MP3 audio at 32kbps.
	//   "MP3_64_KBPS" - MP3 at 64kbps.
	//   "OGG_OPUS" - Opus encoded audio wrapped in an ogg container. The
	// result will be a file which can be played natively on Android, and in
	// browsers (at least Chrome and Firefox). The quality of the encoding
	// is considerably higher than MP3 while using approximately the same
	// bitrate.
	//   "MULAW" - 8-bit samples that compand 14-bit audio samples using
	// G.711 PCMU/mu-law. Audio content returned as MULAW also contains a
	// WAV header.
	//   "ALAW" - 8-bit samples that compand 14-bit audio samples using
	// G.711 PCMU/A-law. Audio content returned as ALAW also contains a WAV
	// header.
	AudioEncoding string `json:"audioEncoding,omitempty"`

	// EffectsProfileId: Optional. Input only. An identifier which selects
	// 'audio effects' profiles that are applied on (post synthesized) text
	// to speech. Effects are applied on top of each other in the order they
	// are given. See audio profiles
	// (https://cloud.google.com/text-to-speech/docs/audio-profiles) for
	// current supported profile ids.
	EffectsProfileId []string `json:"effectsProfileId,omitempty"`

	// Pitch: Optional. Input only. Speaking pitch, in the range [-20.0,
	// 20.0]. 20 means increase 20 semitones from the original pitch. -20
	// means decrease 20 semitones from the original pitch.
	Pitch float64 `json:"pitch,omitempty"`

	// SampleRateHertz: Optional. The synthesis sample rate (in hertz) for
	// this audio. When this is specified in SynthesizeSpeechRequest, if
	// this is different from the voice's natural sample rate, then the
	// synthesizer will honor this request by converting to the desired
	// sample rate (which might result in worse audio quality), unless the
	// specified sample rate is not supported for the encoding chosen, in
	// which case it will fail the request and return
	// google.rpc.Code.INVALID_ARGUMENT.
	SampleRateHertz int64 `json:"sampleRateHertz,omitempty"`

	// SpeakingRate: Optional. Input only. Speaking rate/speed, in the range
	// [0.25, 4.0]. 1.0 is the normal native speed supported by the specific
	// voice. 2.0 is twice as fast, and 0.5 is half as fast. If unset(0.0),
	// defaults to the native 1.0 speed. Any other values < 0.25 or > 4.0
	// will return an error.
	SpeakingRate float64 `json:"speakingRate,omitempty"`

	// VolumeGainDb: Optional. Input only. Volume gain (in dB) of the normal
	// native volume supported by the specific voice, in the range [-96.0,
	// 16.0]. If unset, or set to a value of 0.0 (dB), will play at normal
	// native signal amplitude. A value of -6.0 (dB) will play at
	// approximately half the amplitude of the normal native signal
	// amplitude. A value of +6.0 (dB) will play at approximately twice the
	// amplitude of the normal native signal amplitude. Strongly recommend
	// not to exceed +10 (dB) as there's usually no effective increase in
	// loudness for any value greater than that.
	VolumeGainDb float64 `json:"volumeGainDb,omitempty"`

	// ForceSendFields is a list of field names (e.g. "AudioEncoding") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "AudioEncoding") 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:"-"`
}

type CustomVoiceParams struct {
	// Model: Required. The name of the AutoML model that synthesizes the
	// custom voice.
	Model string `json:"model,omitempty"`

	// ReportedUsage: Optional. Deprecated. The usage of the synthesized
	// audio to be reported.
	//
	// Possible values:
	//   "REPORTED_USAGE_UNSPECIFIED" - Request with reported usage
	// unspecified will be rejected.
	//   "REALTIME" - For scenarios where the synthesized audio is not
	// downloadable and can only be used once. For example, real-time
	// request in IVR system.
	//   "OFFLINE" - For scenarios where the synthesized audio is
	// downloadable and can be reused. For example, the synthesized audio is
	// downloaded, stored in customer service system and played repeatedly.
	ReportedUsage string `json:"reportedUsage,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Model") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "Model") 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:"-"`
}

type GoogleCloudTexttospeechV1beta1SynthesizeLongAudioMetadata struct {
	// LastUpdateTime: Deprecated. Do not use.
	LastUpdateTime string `json:"lastUpdateTime,omitempty"`

	// ProgressPercentage: The progress of the most recent processing update
	// in percentage, ie. 70.0%.
	ProgressPercentage float64 `json:"progressPercentage,omitempty"`

	// StartTime: 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 or default 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:"-"`
}

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 or default 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:"-"`
}

type ListVoicesResponse struct {
	// Voices: The list of voices.
	Voices []*Voice `json:"voices,omitempty"`

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

	// ForceSendFields is a list of field names (e.g. "Voices") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "Voices") 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:"-"`
}

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, successful response of the operation. 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 or default 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:"-"`
}

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

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

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

type ProjectsLocationsService struct {
	Operations *ProjectsLocationsOperationsService
	// contains filtered or unexported fields
}

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

type ProjectsService struct {
	Locations *ProjectsLocationsService
	// contains filtered or unexported fields
}

type Service struct {
	BasePath  string // API endpoint base URL
	UserAgent string // optional additional User-Agent fragment

	Projects *ProjectsService

	Text *TextService

	Voices *VoicesService
	// contains filtered or unexported fields
}

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 or default 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:"-"`
}

type SynthesisInput struct {
	// Ssml: The SSML document to be synthesized. The SSML document must be
	// valid and well-formed. Otherwise the RPC will fail and return
	// google.rpc.Code.INVALID_ARGUMENT. For more information, see SSML
	// (https://cloud.google.com/text-to-speech/docs/ssml).
	Ssml string `json:"ssml,omitempty"`

	// Text: The raw text to be synthesized.
	Text string `json:"text,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Ssml") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "Ssml") 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:"-"`
}

type SynthesizeLongAudioMetadata struct {
	// LastUpdateTime: Deprecated. Do not use.
	LastUpdateTime string `json:"lastUpdateTime,omitempty"`

	// ProgressPercentage: The progress of the most recent processing update
	// in percentage, ie. 70.0%.
	ProgressPercentage float64 `json:"progressPercentage,omitempty"`

	// StartTime: 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 or default 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:"-"`
}

type SynthesizeLongAudioRequest struct {
	// AudioConfig: Required. The configuration of the synthesized audio.
	AudioConfig *AudioConfig `json:"audioConfig,omitempty"`

	// Input: Required. The Synthesizer requires either plain text or SSML
	// as input. While Long Audio is in preview, SSML is temporarily
	// unsupported.
	Input *SynthesisInput `json:"input,omitempty"`

	// OutputGcsUri: Required. Specifies a Cloud Storage URI for the
	// synthesis results. Must be specified in the format:
	// `gs://bucket_name/object_name`, and the bucket must already exist.
	OutputGcsUri string `json:"outputGcsUri,omitempty"`

	// Voice: Required. The desired voice of the synthesized audio.
	Voice *VoiceSelectionParams `json:"voice,omitempty"`

	// ForceSendFields is a list of field names (e.g. "AudioConfig") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "AudioConfig") 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:"-"`
}

type SynthesizeSpeechRequest struct {
	// AudioConfig: Required. The configuration of the synthesized audio.
	AudioConfig *AudioConfig `json:"audioConfig,omitempty"`

	// EnableTimePointing: Whether and what timepoints are returned in the
	// response.
	//
	// Possible values:
	//   "TIMEPOINT_TYPE_UNSPECIFIED" - Not specified. No timepoint
	// information will be returned.
	//   "SSML_MARK" - Timepoint information of “ tags in SSML input will
	// be returned.
	EnableTimePointing []string `json:"enableTimePointing,omitempty"`

	// Input: Required. The Synthesizer requires either plain text or SSML
	// as input.
	Input *SynthesisInput `json:"input,omitempty"`

	// Voice: Required. The desired voice of the synthesized audio.
	Voice *VoiceSelectionParams `json:"voice,omitempty"`

	// ForceSendFields is a list of field names (e.g. "AudioConfig") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "AudioConfig") 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:"-"`
}

type SynthesizeSpeechResponse struct {
	// AudioConfig: The audio metadata of `audio_content`.
	AudioConfig *AudioConfig `json:"audioConfig,omitempty"`

	// AudioContent: The audio data bytes encoded as specified in the
	// request, including the header for encodings that are wrapped in
	// containers (e.g. MP3, OGG_OPUS). For LINEAR16 audio, we include the
	// WAV header. Note: as with all bytes fields, protobuffers use a pure
	// binary representation, whereas JSON representations use base64.
	AudioContent string `json:"audioContent,omitempty"`

	// Timepoints: A link between a position in the original request input
	// and a corresponding time in the output audio. It's only supported via
	// “ of SSML input.
	Timepoints []*Timepoint `json:"timepoints,omitempty"`

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

	// ForceSendFields is a list of field names (e.g. "AudioConfig") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "AudioConfig") 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:"-"`
}

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

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

type Timepoint struct {
	// MarkName: Timepoint name as received from the client within “ tag.
	MarkName string `json:"markName,omitempty"`

	// TimeSeconds: Time offset in seconds from the start of the synthesized
	// audio.
	TimeSeconds float64 `json:"timeSeconds,omitempty"`

	// ForceSendFields is a list of field names (e.g. "MarkName") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "MarkName") 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:"-"`
}

type Voice struct {
	// LanguageCodes: The languages that this voice supports, expressed as
	// BCP-47 (https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tags
	// (e.g. "en-US", "es-419", "cmn-tw").
	LanguageCodes []string `json:"languageCodes,omitempty"`

	// Name: The name of this voice. Each distinct voice has a unique name.
	Name string `json:"name,omitempty"`

	// NaturalSampleRateHertz: The natural sample rate (in hertz) for this
	// voice.
	NaturalSampleRateHertz int64 `json:"naturalSampleRateHertz,omitempty"`

	// SsmlGender: The gender of this voice.
	//
	// Possible values:
	//   "SSML_VOICE_GENDER_UNSPECIFIED" - An unspecified gender. In
	// VoiceSelectionParams, this means that the client doesn't care which
	// gender the selected voice will have. In the Voice field of
	// ListVoicesResponse, this may mean that the voice doesn't fit any of
	// the other categories in this enum, or that the gender of the voice
	// isn't known.
	//   "MALE" - A male voice.
	//   "FEMALE" - A female voice.
	//   "NEUTRAL" - A gender-neutral voice. This voice is not yet
	// supported.
	SsmlGender string `json:"ssmlGender,omitempty"`

	// ForceSendFields is a list of field names (e.g. "LanguageCodes") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "LanguageCodes") 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:"-"`
}

type VoiceSelectionParams struct {
	// CustomVoice: The configuration for a custom voice. If
	// [CustomVoiceParams.model] is set, the service will choose the custom
	// voice matching the specified configuration.
	CustomVoice *CustomVoiceParams `json:"customVoice,omitempty"`

	// LanguageCode: Required. The language (and potentially also the
	// region) of the voice expressed as a BCP-47
	// (https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag, e.g.
	// "en-US". This should not include a script tag (e.g. use "cmn-cn"
	// rather than "cmn-Hant-cn"), because the script will be inferred from
	// the input provided in the SynthesisInput. The TTS service will use
	// this parameter to help choose an appropriate voice. Note that the TTS
	// service may choose a voice with a slightly different language code
	// than the one selected; it may substitute a different region (e.g.
	// using en-US rather than en-CA if there isn't a Canadian voice
	// available), or even a different language, e.g. using "nb" (Norwegian
	// Bokmal) instead of "no" (Norwegian)".
	LanguageCode string `json:"languageCode,omitempty"`

	// Name: The name of the voice. If not set, the service will choose a
	// voice based on the other parameters such as language_code and gender.
	Name string `json:"name,omitempty"`

	// SsmlGender: The preferred gender of the voice. If not set, the
	// service will choose a voice based on the other parameters such as
	// language_code and name. Note that this is only a preference, not
	// requirement; if a voice of the appropriate gender is not available,
	// the synthesizer should substitute a voice with a different gender
	// rather than failing the request.
	//
	// Possible values:
	//   "SSML_VOICE_GENDER_UNSPECIFIED" - An unspecified gender. In
	// VoiceSelectionParams, this means that the client doesn't care which
	// gender the selected voice will have. In the Voice field of
	// ListVoicesResponse, this may mean that the voice doesn't fit any of
	// the other categories in this enum, or that the gender of the voice
	// isn't known.
	//   "MALE" - A male voice.
	//   "FEMALE" - A female voice.
	//   "NEUTRAL" - A gender-neutral voice. This voice is not yet
	// supported.
	SsmlGender string `json:"ssmlGender,omitempty"`

	// ForceSendFields is a list of field names (e.g. "CustomVoice") to
	// unconditionally include in API requests. By default, fields with
	// empty or default 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. "CustomVoice") 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:"-"`
}

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

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