export declare const ClientAudioMetadataPropertyName: string;
export declare const CommitTokenHeaderName: string;
export declare const CommitChannelIndexHeaderName: string;
/**
 * Returns the commit token in the clientAudioMetadata of a parsed phrase object,
 * or 0 if there is none (the result is not a commit acknowledgment).
 */
export declare const commitTokenFromPhrase: (phrase: unknown) => number;
/**
 * Returns the commit token in a phrase JSON string, or 0 if there is none.
 */
export declare const commitTokenFromJson: (json: string) => number;