import { ErrorCode } from './codes';
/**
 * Base error class for all flow-related errors
 */
export declare class FlowError extends Error {
    readonly code: ErrorCode;
    readonly context: Record<string, any>;
    readonly cause?: Error | undefined;
    constructor(message: string, code: ErrorCode, context: Record<string, any>, cause?: Error | undefined);
    toString(options?: {
        includeStack?: boolean;
    }): string;
}
/**
 * Error class for validation errors
 */
export declare class ValidationError extends FlowError {
    constructor(message: string, context: Record<string, any>);
}
/**
 * Error class for execution errors
 */
export declare class ExecutionError extends FlowError {
    constructor(message: string, context: Record<string, any>, cause?: Error);
}
/**
 * Error class for state errors
 */
export declare class StateError extends FlowError {
    constructor(message: string, context: Record<string, any>);
}
type RetryErrorContext = {
    code: ErrorCode.MAX_RETRIES_EXCEEDED;
    attempts: number;
    lastError: string;
    lastErrorType?: string;
    lastErrorCode: string;
    policy: any;
};
export declare class MaxRetriesExceededError extends ExecutionError {
    readonly allErrors: any[];
    constructor(message: string, context: RetryErrorContext, allErrors: any[], cause?: Error);
    toString(options?: {
        includeStack?: boolean;
    }): string;
}
/**
 * Error class for loop step execution errors
 */
export declare class LoopStepExecutionError extends ExecutionError {
    constructor(message: string, context: Record<string, any>, cause?: Error);
}
export {};