Returns:
            dict: POST data, which can be sent to webform using \
                  :py:mod:`urllib` or similar library

def get_POST_data(self):
        """
        Returns:
            dict: POST data, which can be sent to webform using \
                  :py:mod:`urllib` or similar library
        """
        self._postprocess()

        # some fields need to be remapped (depends on type of media)
        self._apply_mapping(
            self.mapping.get(self._POST["P0502010__b"], self.mapping["else"])
        )

        self._check_required_fields()

        return self._POST