export declare enum MessageType {
    COMMAND = "command",
    PARSED_COMMAND = "parsed",
    THINGTALK_COMMAND = "tt",
    TEXT = "text",
    PICTURE = "picture",
    CHOICE = "choice",
    LINK = "link",
    BUTTON = "button",
    RDL = "rdl",
    SOUND_EFFECT = "sound",
    AUDIO = "audio",
    VIDEO = "video",
    NEW_PROGRAM = "new-program",
    ID = "id",
    PING = "ping",
    NEW_DEVICE = "new-device",
    HYPOTHESIS = "hypothesis",
    ASK_SPECIAL = "askSpecial",
    ERROR = "error",
    REQUEST_SUBPROTOCOL = "req-subproto",
    AUDIO_SUBPROTOCOL = "protocol:audio"
}
/**
 * Extension protocols
 *
 * These allows various components in Genie
 * to piggy-back into the conversation websocket,
 * avoiding a different connection to the server.
 */
export declare enum SubprotocolType {
    AUDIO = "audio"
}