Check Functions Returning Promises

import { isReturningPromise } from 'toolbox-x/guards';

function isReturningPromise<T>(fn: unknown): fn is AsyncFunction<T>

type AsyncFunction<T> = (...args: any) => Promise<T>;

// Type-safe handling
function wrapAsync(fn: unknown) {
  if (!isReturningPromise(fn)) {
    throw new Error('Function must return a Promise');
  }
  
  return async (...args: unknown[]) => {
    try {
      return await fn(...args);
    } catch (error) {
      console.error('Async error:', error);
      throw error;
    }
  };
}