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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 raw(self, file_path, ref, streamed=False, action=None, chunk_size=1024, **kwargs):
 """Return the content of a file for a commit. Args: ref (str):
 ID of the commit filepath (str):
 Path of the file to return streamed (bool):
 If True the data will be processed by chunks of `chunk_size` and each chunk is passed to `action` for treatment action (callable):
 Callable responsible of dealing with chunk of data chunk_size (int):
 Size of each chunk **kwargs: Extra options to send to the server (e.g. sudo) Raises: GitlabAuthenticationError: If authentication is not correct GitlabGetError: If the file could not be retrieved Returns: str: The file content """

        file_path = file_path.replace('/', '%2F').replace('.', '%2E')
        path = '%s/%s/raw' % (self.path, file_path)
        query_data = {'ref': ref}
        result = self.gitlab.http_get(path, query_data=query_data,
                                      streamed=streamed, raw=True, **kwargs)
        return utils.response_content(result, streamed, action, chunk_size)