import type { INode } from 'n8n-workflow';
import { NodeApiError } from 'n8n-workflow';
export type TwentyFailureKind = 'authentication' | 'conflict' | 'connectivity' | 'graphql' | 'invalidRequest' | 'notFound' | 'permission' | 'rateLimit' | 'temporary' | 'unknown';
export interface TwentyFailure {
    kind: TwentyFailureKind;
    message: string;
    description: string;
    retryable: boolean;
    statusCode?: number;
    retryAfterMs?: number;
}
export declare function extractTwentyStatus(error: unknown): number | undefined;
export declare function parseRetryAfter(value: unknown, nowMs?: number): number | undefined;
export declare function classifyTwentyError(error: unknown, nowMs?: number): TwentyFailure;
export declare function classifyTwentyGraphqlResponse(response: unknown): TwentyFailure | undefined;
export declare function retryDelayMs(failureDetails: TwentyFailure, retryIndex: number): number;
export declare function createTwentyNodeApiError(node: INode, failureDetails: TwentyFailure): NodeApiError;
export declare function credentialFailureMessage(failureDetails: TwentyFailure): string;