export declare abstract class CREDENTIALS {
    static DIR_NAME: string;
    static PREFIX: string;
}
export declare enum CALLBACK_KEY {
    ON_MESSAGE_RECEIVED = "on-message-received",
    ON_QR = "on-qr",
    ON_CONNECTED = "on-connected",
    ON_DISCONNECTED = "on-disconnected",
    ON_CONNECTING = "on-connecting"
}
export declare abstract class Messages {
    static sessionAlreadyExist: (sessionId: string) => string;
    static sessionNotFound: (sessionId: string) => string;
    static paremetersRequired: (props: string[] | string) => string;
}
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