/**
 *  Possible MQTT authentication results
 */
export declare const AuthenticationResult: {
    readonly ok: 0;
    readonly unacceptableProtocol: 1;
    readonly rejectedUsername: 2;
    readonly serverUnavailable: 3;
    readonly badUsernameOrPassword: 4;
    readonly notAuthorized: 5;
};
/**
 * Type to limit authentication result to valid values
 */
export type AuthenticationResult = typeof AuthenticationResult[keyof typeof AuthenticationResult];
/**
 * Reverse lookup for AuthenticationResult
 */
export declare const AuthenticationResultByNumber: Record<number, string>;
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