/**
 * Executes all promises and returns all successful results.
 * Rejects early if it becomes mathematically impossible to reach the threshold.
 * @param promises Array of promises to execute
 * @param threshold Minimum number of successful responses required
 * @returns Promise that resolves with all successful results (length >= threshold)
 */
export declare function executeWithThreshold<T>(promises: Promise<T>[], threshold: number): Promise<T[]>;