Python 3.4 Enum Backport (enum34)

`enum34` backports the `enum.Enum` class from Python 3.4 to older Python versions (2.4-3.3), enabling the use of enumerated types across diverse legacy environments. It also includes selected features from newer Python `enum` modules, such as `auto()` and `Flag` from Python 3.6. The library is currently at version 1.1.10, and due to its nature as a backport, active development has ceased, though it remains functional and stable for its intended purpose.