/**
 * @public
 * @enum
 */
export declare const PayloadFormatIndicator: {
    readonly UNSPECIFIED_BYTES: "UNSPECIFIED_BYTES";
    readonly UTF8_DATA: "UTF8_DATA";
};
/**
 * @public
 */
export type PayloadFormatIndicator = (typeof PayloadFormatIndicator)[keyof typeof PayloadFormatIndicator];