import type { Context } from './pipe';
/**
 * Run the specified `callback` associating the specified {@link Context} and task
 * name with the current asynchronous invocation context.
 */
export declare function runAsync<T>(context: Context, callback: () => Promise<T>): Promise<T>;
/**
 * Returns the {@link Context} associated with the current asynchronous
 * invocation context or `undefined`.
 */
export declare function currentContext(): Context | undefined;
/**
 * Returns the {@link Context} associated with the current asynchronous
 * invocation context and fail if none was found.
 */
export declare function requireContext(): Context;
/**
 * Return an array of all _task names_ currently running
 */
export declare function runningTasks(): string[];