module documentation

Undocumented

Class HTTPHeaderDict :param headers: An iterable of field-value pairs. Must not contain multiple field names when compared case-insensitively.
Class RecentlyUsedContainer Provides a thread-safe dict-like container which maintains up to ``maxsize`` keys while throwing away the least-recently-used keys beyond ``maxsize``.
Variable _Null Undocumented

Undocumented