export declare const ERR_INVALID_MODULE_SPECIFIER: {
    new (...args: any[]): {
        code: string;
        name: string;
        message: string;
        stack?: string | undefined;
    };
};
export declare const ERR_PACKAGE_IMPORT_NOT_DEFINED: {
    new (...args: any[]): {
        code: string;
        name: string;
        message: string;
        stack?: string | undefined;
    };
};
export declare function assert(condition: boolean, message?: string): void;
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