code: def to_dict(self):
      return {
          "part_number": self.part_number,
          "etag": self.etag,
          "url": self.url,
      }
  
file_path: mlflow/mlflow/entities/multipart_upload.py
imports: from dataclasses import dataclass
  from typing import Any, Dict, List, Optional
  from mlflow.protos.mlflow_artifacts_pb2 import CreateMultipartUpload
  from mlflow.protos.mlflow_artifacts_pb2 import MultipartUploadCredential
label_desc: Use image node_id 2 for calling the MultipartUploadPart obj's underlying member method code with example usage: obj.to_dict() and returns: dict