'Provides :class:`~stem.response.ControlLine` instances for the content of
the message. This is stripped of status codes and dividers, for instance...
250+info/names=
desc/id/* -- Router descriptors by ID.
desc/name/* -- Router descriptors by nickname.
250 OK
Would provide two entries...
1st - "info/names=
desc/id/* -- Router descriptors by ID.
desc/name/* -- Router descriptors by nickname."
2nd - "OK"'

def __iter__(self):

    for (_, _, content) in self._parsed_content:
        if stem.prereq.is_python_3():
            content = stem.util.str_tools._to_unicode(content)
        (yield ControlLine(content))
