code: def normalize_name(name: Optional[str] = None):
      if not name:
          return str(uuid.uuid4())
      return name
  
file_path: mars/mars/services/mutable/utils.py
imports: from datetime import datetime
  import itertools
  from numbers import Integral
  from typing import Optional
  import uuid
  import numpy
  from ...core import tile
label_desc: Use image node_id 8 for calling a global function with example usage: normalize_name(name) and returns: name, str