1-a. Add a feature to the expression parsing code1-b. Verify through testing with pytest and direct connection that the expression parser works on some feature you have added.2. Verify using requests and pytest that some API on this list works correctly: https://github.com/toddmotto/public-apis3. Verify using webdriver and pytest that either “Oster” or “Hamilton Beach” is one of the blenders brands sold on Amazon on the “blender” search page.