fix: fix typings of todo modifier (#756)

src/modules/helpers/modifiers.ts

@@ -2,11 +2,30 @@ import { Write } from '../../services/write.js';
 import { indentation } from '../../configs/indentation.js';
 import { format } from '../../services/format.js';
 
-export const todo = (message: string, _cb?: () => unknown) =>
+export function todo(message: string): void;
+export async function todo(
+  message: string,
+  _cb?: () => Promise<unknown>
+): Promise<void>;
+export function todo(message: string, _cb?: () => unknown): void;
+export async function todo(
+  message: string | (() => unknown) | (() => Promise<unknown>),
+  _cb?: (() => unknown) | (() => Promise<unknown>)
+): Promise<void> {
   Write.log(
     `${indentation.hasDescribe ? '  ' : ''}${format(`● ${message}`).cyan().bold()}`
   );
 
+  /* c8 ignore start */ // Type guard
+  if (typeof _cb === 'function') {
+    const isAsync = _cb.constructor.name === 'AsyncFunction';
+
+    if (isAsync) return await Promise.resolve();
+    return;
+  }
+  /* c8 ignore stop */
+}
+
 export async function skip(
   message: string,
   _cb: () => Promise<unknown>