def use_numpy():
global BitString, _using_numpy<EOL>from ._numpy_bitstrings import BitString<EOL>_using_numpy = True<EOL>
Force the package to use the numpy-based BitString implementation.
    If numpy is not available, this will result in an ImportError.
    IMPORTANT: Bitstrings of different implementations cannot be mixed.
    Attempting to do so will result in undefined behavior.

    Usage:
        use_numpy()
        assert using_numpy()

    Arguments: None
    Return: None