/**
 * Amazon Polly TTS configuration parameters.
 */
export interface AmazonTtsParams {
    /** AWS access key ID */
    aws_access_key_id: string;
    /** AWS secret key */
    aws_secret_access_key: string;
    /** AWS region (e.g., "us-east-1") */
    region_name: string;
    /** Amazon Polly voice ID */
    voice: string;
    /** Amazon Polly engine type */
    engine: AmazonTtsParams.Engine;
    /** Accepts any additional properties */
    [key: string]: any;
}
export declare namespace AmazonTtsParams {
    /** Amazon Polly engine type */
    const Engine: {
        readonly Standard: "standard";
        readonly Neural: "neural";
        readonly LongForm: "long-form";
        readonly Generative: "generative";
    };
    type Engine = (typeof Engine)[keyof typeof Engine];
}