v4.2.4

Features

• More ergonomic ArgumentCollection.__contains__ that allows for string-lookup of arguments. by @BrianPugh in #689

Bug Fixes

• Fix finding docstrings for classes with inheritance.
  • We now search the class's MRO for attribute docstrings. by @BrianPugh in #693
• Fix snake_case negative args not being accepted. by @BrianPugh in #694

Full Changelog: v4.2.3...v4.2.4