/// <reference types="node" resolution-mode="require"/>
import { Readable } from 'node:stream';
import { z } from 'zod';
import { TextToSpeechClient } from '@google-cloud/text-to-speech';
import { cloud_text_to_speech } from '@jackdbd/zod-schemas/gcp';
export declare const audioExtension: (audioEncoding: cloud_text_to_speech.AudioEncoding) => "mp3" | "alaw" | "l16" | "mulaw" | "opus" | "wav";
export declare const synthesis_config: z.ZodObject<{
    /**
     * Encoding for the generated audio file.
     */
    audioEncoding: z.ZodUnion<[z.ZodLiteral<"ALAW">, z.ZodLiteral<"AUDIO_ENCODING_UNSPECIFIED">, z.ZodLiteral<"LINEAR16">, z.ZodLiteral<"MP3">, z.ZodLiteral<"MULAW">, z.ZodLiteral<"OGG_OPUS">]>;
    /**
     * Voice to use for text-to-speech synthesis.
     *
     * @see [cloud.google.com - Voices supported by the Speech-to-Text API](https://cloud.google.com/text-to-speech/docs/voices)
     * @see [cloud.google.com - Different voices might have different prices](https://cloud.google.com/text-to-speech/pricing)
     */
    voiceName: z.ZodString;
}, "strip", z.ZodTypeAny, {
    audioEncoding: "ALAW" | "AUDIO_ENCODING_UNSPECIFIED" | "LINEAR16" | "MP3" | "MULAW" | "OGG_OPUS";
    voiceName: string;
}, {
    audioEncoding: "ALAW" | "AUDIO_ENCODING_UNSPECIFIED" | "LINEAR16" | "MP3" | "MULAW" | "OGG_OPUS";
    voiceName: string;
}>;
export type SynthesisConfig = z.input<typeof synthesis_config>;
export declare const synthesize_config: z.ZodObject<{
    /**
     * Text to synthesize into speech using the Google Cloud Text-to-Speech API.
     *
     * @remarks
     * Character limit for the Google Cloud Text-to-Speech API: 5000 characters
     */
    text: z.ZodTypeAny;
}, "strip", z.ZodTypeAny, {
    text?: any;
}, {
    text?: any;
}>;
/**
 * Configuration for the Google Cloud Text-to-Speech API.
 *
 * @see [cloud.google.com - Cloud Text-to-Speech API Reference](https://cloud.google.com/text-to-speech/docs/apis)
 */
export type SynthesizeConfig = z.input<typeof synthesize_config>;
/**
 * Synthesizes text into speech using the Google Cloud Text-to-Speech API.
 */
export declare const synthesize: (client: TextToSpeechClient, cfg: SynthesisConfig, text: string) => Promise<{
    error: Error;
    value?: undefined;
} | {
    value: Readable;
    error?: undefined;
}>;
export declare const auth_options: z.ZodObject<{
    credentials: z.ZodOptional<z.ZodObject<{
        client_email: z.ZodUnion<[z.ZodString, z.ZodString, z.ZodString]>;
        private_key: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        client_email: string;
        private_key: string;
    }, {
        client_email: string;
        private_key: string;
    }>>;
    keyFilename: z.ZodOptional<z.ZodDefault<z.ZodString>>;
}, "strip", z.ZodTypeAny, {
    credentials?: {
        client_email: string;
        private_key: string;
    } | undefined;
    keyFilename?: string | undefined;
}, {
    credentials?: {
        client_email: string;
        private_key: string;
    } | undefined;
    keyFilename?: string | undefined;
}>;
export type AuthOptions = z.input<typeof auth_options>;
export declare const client_config: z.ZodObject<z.objectUtil.extendShape<{
    credentials: z.ZodOptional<z.ZodObject<{
        client_email: z.ZodUnion<[z.ZodString, z.ZodString, z.ZodString]>;
        private_key: z.ZodString;
    }, "strip", z.ZodTypeAny, {
        client_email: string;
        private_key: string;
    }, {
        client_email: string;
        private_key: string;
    }>>;
    keyFilename: z.ZodOptional<z.ZodDefault<z.ZodString>>;
}, {
    /**
     * Encoding for the generated audio file.
     */
    audioEncoding: z.ZodUnion<[z.ZodLiteral<"ALAW">, z.ZodLiteral<"AUDIO_ENCODING_UNSPECIFIED">, z.ZodLiteral<"LINEAR16">, z.ZodLiteral<"MP3">, z.ZodLiteral<"MULAW">, z.ZodLiteral<"OGG_OPUS">]>;
    /**
     * Voice to use for text-to-speech synthesis.
     *
     * @see [cloud.google.com - Voices supported by the Speech-to-Text API](https://cloud.google.com/text-to-speech/docs/voices)
     * @see [cloud.google.com - Different voices might have different prices](https://cloud.google.com/text-to-speech/pricing)
     */
    voiceName: z.ZodString;
}>, "strip", z.ZodTypeAny, {
    audioEncoding: "ALAW" | "AUDIO_ENCODING_UNSPECIFIED" | "LINEAR16" | "MP3" | "MULAW" | "OGG_OPUS";
    voiceName: string;
    credentials?: {
        client_email: string;
        private_key: string;
    } | undefined;
    keyFilename?: string | undefined;
}, {
    audioEncoding: "ALAW" | "AUDIO_ENCODING_UNSPECIFIED" | "LINEAR16" | "MP3" | "MULAW" | "OGG_OPUS";
    voiceName: string;
    credentials?: {
        client_email: string;
        private_key: string;
    } | undefined;
    keyFilename?: string | undefined;
}>;
export type ClientConfig = z.input<typeof client_config>;
/**
 * Client for the Google Cloud Text-to-Speech API.
 */
export declare const defClient: (config: ClientConfig) => {
    config: {
        audioEncoding: "ALAW" | "AUDIO_ENCODING_UNSPECIFIED" | "LINEAR16" | "MP3" | "MULAW" | "OGG_OPUS";
        voiceName: string;
    };
    extension: string;
    synthesize: (text: string) => Promise<{
        error: Error;
        value?: undefined;
    } | {
        value: Readable;
        error?: undefined;
    }>;
};
//# sourceMappingURL=gcp-text-to-speech.d.ts.map