Ordered Multivalue Dictionary

orderedmultidict is a Python library that provides an `omdict` class, an ordered multivalue dictionary. It retains the insertion order of both keys and their associated values, and aims for method parity with Python's built-in `dict`. The library is known for powering `furl` and supports both Python 2 and Python 3 environments. The current version is 1.0.2, with the last release dating back to 2019, indicating an infrequent release cadence.