/** @public */
export declare const AuthMechanism: Readonly<{
    readonly MONGODB_AWS: "MONGODB-AWS";
    readonly MONGODB_CR: "MONGODB-CR";
    readonly MONGODB_DEFAULT: "DEFAULT";
    readonly MONGODB_GSSAPI: "GSSAPI";
    readonly MONGODB_PLAIN: "PLAIN";
    readonly MONGODB_SCRAM_SHA1: "SCRAM-SHA-1";
    readonly MONGODB_SCRAM_SHA256: "SCRAM-SHA-256";
    readonly MONGODB_X509: "MONGODB-X509";
}>;
/** @public */
export declare type AuthMechanism = typeof AuthMechanism[keyof typeof AuthMechanism];
/** @internal */
export declare const AUTH_MECHS_AUTH_SRC_EXTERNAL: Set<AuthMechanism>;
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