def METHOD_NAME(self):
    r"""
    TESTS::
        sage: M = Monoids().example(alphabet=('a','b','c'))
        sage: M._repr_()
        "An example of a monoid: the free monoid generated by ('a', 'b', 'c')"
    """
    return "An example of a monoid: the free monoid generated by %s"%(self.alphabet,)