def list_files(self) -> Sequence[str]:
        """List all files in the index."""
        files = []
        with telemetry.tool_context_manager(self._user_agent):
            for file in rag.list_files(corpus_name=self.corpus_name):
                files.append(file.name)
        return files
List all files in the index.
llama-index-integrations/indices/llama-index-indices-managed-vertexai/llama_index/indices/managed/vertexai/base.py