/**
 * Generic progress information for long-running operations
 */
export interface Progress<T = unknown> {
    /** Current item being processed (1-indexed) */
    current: number;
    /** Total number of items to process */
    total: number;
    /** Optional context data about the current item */
    context?: T;
}
/**
 * Callback for reporting progress during operations
 */
export type ProgressCallback<T = unknown> = (progress: Progress<T>) => void;
/**
 * Cancellation token for aborting long-running operations
 */
export interface CancellationToken {
    /** Whether cancellation has been requested */
    readonly isCancellationRequested: boolean;
}
/**
 * Exception thrown when an operation is cancelled
 */
export declare class CancellationError extends Error {
    constructor(message?: string);
}
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