This is a semi-private method. It's current use is to
        manipulate memory file system objects so that
        you can create certain conditions, to provoke
        errors that otherwise won't occur.

def _manipulate(self, *args, **kwargs):
        """
        This is a semi-private method. It's current use is to
        manipulate memory file system objects so that
        you can create certain conditions, to provoke
        errors that otherwise won't occur.
        """
        self.connection._manipulate(self, *args, **kwargs)