@utm_source.setter<EOL><INDENT>def utm_source(self, value):<DEDENT>
self._utm_source = value<EOL>
Name of the referrer source. (e.g. Google, SomeDomain.com, or
           Marketing Email)

        :param value: Name of the referrer source.
        (e.g. Google, SomeDomain.com, or Marketing Email)
        :type value: string