interface HttpStatusError {
    status: number;
}
interface NetworkError {
    code: string;
    message?: string;
}
export interface QueryNotFoundError extends Error {
    code: "QUERY_NOT_FOUND";
    message: string;
}
export declare function isQueryNotFoundError(error: unknown): error is QueryNotFoundError;
export declare function isHttpStatusError(error: unknown): error is HttpStatusError;
export declare function isNetworkError(error: unknown): error is NetworkError;
export declare function isRetriableClientError(response: unknown): boolean;
export declare const isClientErrorStatusCode: (status: number) => boolean;
export declare const isServerErrorStatusCode: (status: number) => boolean;
export declare const isSuccessfulStatusCode: (statusCode: number) => boolean;
export {};