/**
 * Copyright 2015 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { AxiosPromise } from 'axios';
import { GoogleApis } from '../..';
import { BodyResponseCallback, GlobalOptions, MethodOptions } from '../../lib/api';
/**
 * Cloud Speech API
 *
 * Converts audio to text by applying powerful neural network models.
 *
 * @example
 * const google = require('googleapis');
 * const speech = google.speech('v1');
 *
 * @namespace speech
 * @type {Function}
 * @version v1
 * @variation v1
 * @param {object=} options Options for Speech
 */
export declare class Speech {
    _options: GlobalOptions;
    google: GoogleApis;
    root: this;
    operations: Resource$Operations;
    speech: Resource$Speech;
    constructor(options: GlobalOptions, google: GoogleApis);
    getRoot(): this;
}
/**
 * The top-level message sent by the client for the `LongRunningRecognize`
 * method.
 */
export interface Schema$LongRunningRecognizeRequest {
    /**
     * *Required* The audio data to be recognized.
     */
    audio: Schema$RecognitionAudio;
    /**
     * *Required* Provides information to the recognizer that specifies how to
     * process the request.
     */
    config: Schema$RecognitionConfig;
}
/**
 * This resource represents a long-running operation that is the result of a
 * network API call.
 */
export interface Schema$Operation {
    /**
     * 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: boolean;
    /**
     * The error result of the operation in case of failure or cancellation.
     */
    error: Schema$Status;
    /**
     * Service-specific metadata associated with the operation.  It typically
     * contains progress information and common metadata such as create time. Some
     * services might not provide such metadata.  Any method that returns a
     * long-running operation should document the metadata type, if any.
     */
    metadata: any;
    /**
     * The server-assigned name, which is only unique within the same service that
     * originally returns it. If you use the default HTTP mapping, the `name`
     * should have the format of `operations/some/unique/name`.
     */
    name: string;
    /**
     * The normal response of the operation in case of success.  If the original
     * method returns no data on success, such as `Delete`, the response is
     * `google.protobuf.Empty`.  If the original method is standard
     * `Get`/`Create`/`Update`, the response should be the resource.  For other
     * methods, the response should have the type `XxxResponse`, where `Xxx` is
     * the original method name.  For example, if the original method name is
     * `TakeSnapshot()`, the inferred response type is `TakeSnapshotResponse`.
     */
    response: any;
}
/**
 * Contains audio data in the encoding specified in the `RecognitionConfig`.
 * Either `content` or `uri` must be supplied. Supplying both or neither returns
 * google.rpc.Code.INVALID_ARGUMENT. See [audio
 * limits](https://cloud.google.com/speech/limits#content).
 */
export interface Schema$RecognitionAudio {
    /**
     * The audio data bytes encoded as specified in `RecognitionConfig`. Note: as
     * with all bytes fields, protobuffers use a pure binary representation,
     * whereas JSON representations use base64.
     */
    content: string;
    /**
     * URI that points to a file that contains audio data bytes as specified in
     * `RecognitionConfig`. Currently, only Google Cloud Storage URIs are
     * supported, which must be specified in the following format:
     * `gs://bucket_name/object_name` (other URI formats return
     * google.rpc.Code.INVALID_ARGUMENT). For more information, see [Request
     * URIs](https://cloud.google.com/storage/docs/reference-uris).
     */
    uri: string;
}
/**
 * Provides information to the recognizer that specifies how to process the
 * request.
 */
export interface Schema$RecognitionConfig {
    /**
     * *Optional* If `true`, the top result includes a list of words and the start
     * and end time offsets (timestamps) for those words. If `false`, no
     * word-level time offset information is returned. The default is `false`.
     */
    enableWordTimeOffsets: boolean;
    /**
     * Encoding of audio data sent in all `RecognitionAudio` messages. This field
     * is optional for `FLAC` and `WAV` audio files and required for all other
     * audio formats. For details, see AudioEncoding.
     */
    encoding: string;
    /**
     * *Required* The language of the supplied audio as a
     * [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag.
     * Example: "en-US". See [Language
     * Support](https://cloud.google.com/speech/docs/languages) for a list of the
     * currently supported language codes.
     */
    languageCode: string;
    /**
     * *Optional* Maximum number of recognition hypotheses to be returned.
     * Specifically, the maximum number of `SpeechRecognitionAlternative` messages
     * within each `SpeechRecognitionResult`. The server may return fewer than
     * `max_alternatives`. Valid values are `0`-`30`. A value of `0` or `1` will
     * return a maximum of one. If omitted, will return a maximum of one.
     */
    maxAlternatives: number;
    /**
     * *Optional* If set to `true`, the server will attempt to filter out
     * profanities, replacing all but the initial character in each filtered word
     * with asterisks, e.g. "f***". If set to `false` or omitted,
     * profanities won't be filtered out.
     */
    profanityFilter: boolean;
    /**
     * Sample rate in Hertz of the audio data sent in all `RecognitionAudio`
     * messages. Valid values are: 8000-48000. 16000 is optimal. For best results,
     * set the sampling rate of the audio source to 16000 Hz. If that's not
     * possible, use the native sample rate of the audio source (instead of
     * re-sampling). This field is optional for `FLAC` and `WAV` audio files and
     * required for all other audio formats. For details, see AudioEncoding.
     */
    sampleRateHertz: number;
    /**
     * *Optional* A means to provide context to assist the speech recognition.
     */
    speechContexts: Schema$SpeechContext[];
}
/**
 * The top-level message sent by the client for the `Recognize` method.
 */
export interface Schema$RecognizeRequest {
    /**
     * *Required* The audio data to be recognized.
     */
    audio: Schema$RecognitionAudio;
    /**
     * *Required* Provides information to the recognizer that specifies how to
     * process the request.
     */
    config: Schema$RecognitionConfig;
}
/**
 * The only message returned to the client by the `Recognize` method. It
 * contains the result as zero or more sequential `SpeechRecognitionResult`
 * messages.
 */
export interface Schema$RecognizeResponse {
    /**
     * Output only. Sequential list of transcription results corresponding to
     * sequential portions of audio.
     */
    results: Schema$SpeechRecognitionResult[];
}
/**
 * Provides "hints" to the speech recognizer to favor specific words
 * and phrases in the results.
 */
export interface Schema$SpeechContext {
    /**
     * *Optional* A list of strings containing words and phrases "hints"
     * so that the speech recognition is more likely to recognize them. This can
     * be used to improve the accuracy for specific words and phrases, for
     * example, if specific commands are typically spoken by the user. This can
     * also be used to add additional words to the vocabulary of the recognizer.
     * See [usage limits](https://cloud.google.com/speech/limits#content).
     */
    phrases: string[];
}
/**
 * Alternative hypotheses (a.k.a. n-best list).
 */
export interface Schema$SpeechRecognitionAlternative {
    /**
     * Output only. The confidence estimate between 0.0 and 1.0. A higher number
     * indicates an estimated greater likelihood that the recognized words are
     * correct. This field is set only for the top alternative of a non-streaming
     * result or, of a streaming result where `is_final=true`. This field is not
     * guaranteed to be accurate and users should not rely on it to be always
     * provided. The default of 0.0 is a sentinel value indicating `confidence`
     * was not set.
     */
    confidence: number;
    /**
     * Output only. Transcript text representing the words that the user spoke.
     */
    transcript: string;
    /**
     * Output only. A list of word-specific information for each recognized word.
     */
    words: Schema$WordInfo[];
}
/**
 * A speech recognition result corresponding to a portion of the audio.
 */
export interface Schema$SpeechRecognitionResult {
    /**
     * Output only. May contain one or more recognition hypotheses (up to the
     * maximum specified in `max_alternatives`). These alternatives are ordered in
     * terms of accuracy, with the top (first) alternative being the most
     * probable, as ranked by the recognizer.
     */
    alternatives: Schema$SpeechRecognitionAlternative[];
}
/**
 * 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). The error model is designed to be:
 * - Simple to use and understand for most users - Flexible enough to meet
 * unexpected needs  # Overview  The `Status` message contains three pieces of
 * data: error code, error message, and error details. The error code should be
 * an enum value of google.rpc.Code, but it may accept additional error codes if
 * needed.  The error message should be a developer-facing English message that
 * helps developers *understand* and *resolve* the error. If a localized
 * user-facing error message is needed, put the localized message in the error
 * details or localize it in the client. The optional error details may contain
 * arbitrary information about the error. There is a predefined set of error
 * detail types in the package `google.rpc` that can be used for common error
 * conditions.  # Language mapping  The `Status` message is the logical
 * representation of the error model, but it is not necessarily the actual wire
 * format. When the `Status` message is exposed in different client libraries
 * and different wire protocols, it can be mapped differently. For example, it
 * will likely be mapped to some exceptions in Java, but more likely mapped to
 * some error codes in C.  # Other uses  The error model and the `Status`
 * message can be used in a variety of environments, either with or without
 * APIs, to provide a consistent developer experience across different
 * environments.  Example uses of this error model include:  - Partial errors.
 * If a service needs to return partial errors to the client,     it may embed
 * the `Status` in the normal response to indicate the partial     errors.  -
 * Workflow errors. A typical workflow has multiple steps. Each step may have a
 * `Status` message for error reporting.  - Batch operations. If a client uses
 * batch request and batch response, the     `Status` message should be used
 * directly inside batch response, one for     each error sub-response.  -
 * Asynchronous operations. If an API call embeds asynchronous operation results
 * in its response, the status of those operations should be     represented
 * directly using the `Status` message.  - Logging. If some API errors are
 * stored in logs, the message `Status` could     be used directly after any
 * stripping needed for security/privacy reasons.
 */
export interface Schema$Status {
    /**
     * The status code, which should be an enum value of google.rpc.Code.
     */
    code: number;
    /**
     * A list of messages that carry the error details.  There is a common set of
     * message types for APIs to use.
     */
    details: any[];
    /**
     * A developer-facing error message, which should be in English. Any
     * user-facing error message should be localized and sent in the
     * google.rpc.Status.details field, or localized by the client.
     */
    message: string;
}
/**
 * Word-specific information for recognized words.
 */
export interface Schema$WordInfo {
    /**
     * 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.
     */
    endTime: string;
    /**
     * 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.
     */
    startTime: string;
    /**
     * Output only. The word corresponding to this set of information.
     */
    word: string;
}
export declare class Resource$Operations {
    root: Speech;
    constructor(root: Speech);
    getRoot(): Speech;
    /**
     * speech.operations.get
     * @desc Gets the latest state of a long-running operation.  Clients can use
     * this method to poll the operation result at intervals as recommended by the
     * API service.
     * @alias speech.operations.get
     * @memberOf! ()
     *
     * @param {object} params Parameters for request
     * @param {string} params.name The name of the operation resource.
     * @param {object} [options] Optionally override request options, such as `url`, `method`, and `encoding`.
     * @param {callback} callback The callback that handles the response.
     * @return {object} Request object
     */
    get(params?: any, options?: MethodOptions): AxiosPromise<Schema$Operation>;
    get(params?: any, options?: MethodOptions | BodyResponseCallback<Schema$Operation>, callback?: BodyResponseCallback<Schema$Operation>): void;
}
export declare class Resource$Speech {
    root: Speech;
    constructor(root: Speech);
    getRoot(): Speech;
    /**
     * speech.speech.longrunningrecognize
     * @desc Performs asynchronous speech recognition: receive results via the
     * google.longrunning.Operations interface. Returns either an
     * `Operation.error` or an `Operation.response` which contains a
     * `LongRunningRecognizeResponse` message.
     * @alias speech.speech.longrunningrecognize
     * @memberOf! ()
     *
     * @param {object} params Parameters for request
     * @param {().LongRunningRecognizeRequest} params.resource Request body data
     * @param {object} [options] Optionally override request options, such as `url`, `method`, and `encoding`.
     * @param {callback} callback The callback that handles the response.
     * @return {object} Request object
     */
    longrunningrecognize(params?: any, options?: MethodOptions): AxiosPromise<Schema$Operation>;
    longrunningrecognize(params?: any, options?: MethodOptions | BodyResponseCallback<Schema$Operation>, callback?: BodyResponseCallback<Schema$Operation>): void;
    /**
     * speech.speech.recognize
     * @desc Performs synchronous speech recognition: receive results after all
     * audio has been sent and processed.
     * @alias speech.speech.recognize
     * @memberOf! ()
     *
     * @param {object} params Parameters for request
     * @param {().RecognizeRequest} params.resource Request body data
     * @param {object} [options] Optionally override request options, such as `url`, `method`, and `encoding`.
     * @param {callback} callback The callback that handles the response.
     * @return {object} Request object
     */
    recognize(params?: any, options?: MethodOptions): AxiosPromise<Schema$RecognizeResponse>;
    recognize(params?: any, options?: MethodOptions | BodyResponseCallback<Schema$RecognizeResponse>, callback?: BodyResponseCallback<Schema$RecognizeResponse>): void;
}