@classmethod
def from_args(cls, args, arg_prefix, loader):
    """Construct the discoverer from parsed command line arguments.

        Parameters
        ----------
        args : argparse.Namespace
            The ``argparse.Namespace`` containing parsed arguments.
        arg_prefix : str
            The prefix used for arguments beloning solely to this plugin.
        loader : haas.loader.Loader
            The test loader used to construct TestCase and TestSuite instances.

        """
    return cls(loader)
