@mime_type.setter<EOL><INDENT>def mime_type(self, value):<DEDENT>
self._mime_type = value<EOL>
The MIME type of the content you are including in your email.
        For example, "text/plain" or "text/html".

        :param value: The MIME type of the content you are including in your
                      email.
        For example, "text/plain" or "text/html".
        :type value: string