def serializeStruct(self):
serial = MambuStruct.serializeFields(self.attrs)<EOL>return serial<EOL>
Makes a string from each element on the attrs attribute.

        Read the class attribute MambuStruct.serializeFields pydoc for
        more info.

        It DOES NOT serializes the class, for persistence or network
        transmission, just the fields on the attrs attribute.

        Remember that attrs may have any type of elements: numbers,
        strings, datetimes, Mambu objects, etc. This is a way to convert
        it to a string in an easy, however ugly, way.

        WARNING: it may fall in a stack overflow

.. todo:: check recursion levels.