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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def file_name(self, file_name):
 """ Updates the file_name. Args: file_name: """

        if not self.can_update():
            self._tcex.handle_error(910, [self.type])

        self._data['fileName'] = file_name
        request = {'fileName': file_name}
        return self.tc_requests.update(self.api_type, self.api_sub_type, self.unique_id, request)