export declare enum ParticipantChangedReason {
    /** Participant has joined the conversation. */
    JoinedConversation = 0,
    /** Participant has left the conversation. This could be voluntary, or involuntary
     * (e.g. they are experiencing networking issues).
     */
    LeftConversation = 1,
    /** The participants' state has changed (e.g. they became muted, changed their nickname). */
    Updated = 2
}