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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_content(self, file_content, update_if_exists=True):
 """ Updates the file content. Args: file_content: The file_content to upload. update_if_exists: Returns: """

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

        self._data['fileContent'] = file_content
        return self.tc_requests.upload(
            self.api_type,
            self.api_sub_type,
            self.unique_id,
            file_content,
            update_if_exists=update_if_exists,
        )