import * as z from "zod/v3";
import { Result as SafeParseResult } from "../../types/fp.js";
import { SDKValidationError } from "../errors/sdkvalidationerror.js";
export type GetTextToSpeechHistoryContentRequest = {
    ttsId: string;
    /**
     * Optional external end-user identifier forwarded by the API gateway.
     */
    xOnBehalfOf?: string | undefined;
};
export type GetTextToSpeechHistoryContentResponse = ReadableStream<Uint8Array> | ReadableStream<Uint8Array>;
/** @internal */
export declare const GetTextToSpeechHistoryContentRequest$inboundSchema: z.ZodType<GetTextToSpeechHistoryContentRequest, z.ZodTypeDef, unknown>;
/** @internal */
export type GetTextToSpeechHistoryContentRequest$Outbound = {
    tts_id: string;
    "X-On-Behalf-Of"?: string | undefined;
};
/** @internal */
export declare const GetTextToSpeechHistoryContentRequest$outboundSchema: z.ZodType<GetTextToSpeechHistoryContentRequest$Outbound, z.ZodTypeDef, GetTextToSpeechHistoryContentRequest>;
export declare function getTextToSpeechHistoryContentRequestToJSON(getTextToSpeechHistoryContentRequest: GetTextToSpeechHistoryContentRequest): string;
export declare function getTextToSpeechHistoryContentRequestFromJSON(jsonString: string): SafeParseResult<GetTextToSpeechHistoryContentRequest, SDKValidationError>;
/** @internal */
export declare const GetTextToSpeechHistoryContentResponse$inboundSchema: z.ZodType<GetTextToSpeechHistoryContentResponse, z.ZodTypeDef, unknown>;
/** @internal */
export type GetTextToSpeechHistoryContentResponse$Outbound = ReadableStream<Uint8Array> | ReadableStream<Uint8Array>;
/** @internal */
export declare const GetTextToSpeechHistoryContentResponse$outboundSchema: z.ZodType<GetTextToSpeechHistoryContentResponse$Outbound, z.ZodTypeDef, GetTextToSpeechHistoryContentResponse>;
export declare function getTextToSpeechHistoryContentResponseToJSON(getTextToSpeechHistoryContentResponse: GetTextToSpeechHistoryContentResponse): string;
export declare function getTextToSpeechHistoryContentResponseFromJSON(jsonString: string): SafeParseResult<GetTextToSpeechHistoryContentResponse, SDKValidationError>;
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