import { ErrorResponse } from "apollo-link-error";
import { StatusCode } from "./types";
export declare function assertGraphQLUserError(err: ErrorResponse): void;
export declare function assertGraphQLCreditsError(err: ErrorResponse): void;
export declare function assertGraphQLNetworkError(err: ErrorResponse): void;
export declare function assertGraphQLOtherError(err: ErrorResponse): void;
export declare function handleGraphQLError(err: ErrorResponse): ErrorResponse;
export declare const ERROR_CODES: {
    NO_BILLING_INFO: {
        code: number;
        message: string;
    };
    EMAIL_NOT_VERIFIED: {
        code: number;
        message: string;
    };
    MAX_LANGUAGE_COUNT_EXCEEDED: {
        code: number;
        message: string;
    };
    MAX_WORD_COUNT_EXCEEDED: {
        code: number;
        message: string;
    };
    NO_USER_SUPPLIED: {
        code: number;
        message: string;
    };
    INVALID_API_KEY: {
        code: number;
        message: string;
    };
};
/**
 * given a backend error, find the corresponding frontend error and display
 * @param error backend error
 */
export declare function handleError(error: StatusCode): void;