/**
 * Represents a request for sending an audio message via the MMS (Multimedia Messaging Service) channel.
 *
 * @group MMS
 * @category Requests
 *
 * @remarks
 * Vonage API's will return information using `snake_case`. This represents the
 * pure response before the client will transform the keys into `camelCase`.
 */
export type MMSAudioRequest = {
    /**
     * A client-defined reference string for the message.
     */
    client_ref: string;
    /**
     * The type of the message, which is 'audio' for an audio message.
     */
    message_type: 'audio';
    /**
     * The audio content of the message, including the URL of the audio and an optional caption.
     */
    audio: {
        /**
         * The URL of the audio file to be sent in the message.
         */
        url: string;
        /**
         * An optional caption or description for the audio message.
         */
        caption?: string;
    };
    /**
     * The recipient's phone number or identifier.
     */
    to: string;
    /**
     * The sender's phone number or identifier.
     */
    from: string;
    /**
     * The channel through which the message will be sent, which is 'mms' for MMS.
     */
    channel: 'mms';
};
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