Max Andreev

1. Added helper methods to replace `createCollectionExpectSuccess`, `createCollectionWithPropsExpectSuccess`, `createCollectionExpectFailue`, `createCollectionWithPropsExpectFailure`. 2. removed logs from the console.

You have a comment in the 14.5-literal-inference.explainer.ts file: ```typescript // When returning the value only, it infers // the literal type const returnsValueOnly = (t: T) => { return t;...