export declare class AbortError extends Error {
    readonly name: 'AbortError';
    readonly originalError: Error;
    constructor(message: string | Error);
}
export declare class RefusalError extends Error {
    readonly name: 'RefusalError';
    readonly originalError: Error;
    constructor(message: string | Error);
}
/** Get the error message string from an unknown type. */
export declare function getErrorMsg(error: unknown): string;