@classmethod
def _guess_candidates(cls, base, directories, files):
    """
        This is a class method that accepts a directory (base), a list of files
        in that directory, and a list of subdirectories.  It should return a
        list of filenames (defined relative to the supplied directory) and a
        boolean as to whether or not further directories should be recursed.

        This function doesn't need to catch all possibilities, nor does it need
        to filter possibilities.
        """
    return [], True
