_keys : bool, default=True
    Whether to check if the requested parameters fit the actual parameters
    of the method.

Notes
-----
This class is a descriptor [1]_ and uses PEP-362 to set the signature of
the returned function [2]_.

References
----------
.. [1] https://docs.python.org/3/howto/descriptor.html

.. [2] https://www.python.org/dev/peps/pep-0362/
c