code: def sub_ns(self, name: str):
      return NS(name=name, deep=self.deep + 1, parent=self)
  
file_path: FATE/python/fate/arch/context/_namespace.py
imports: import logging
  from typing import List, Optional, Tuple
label_desc: Use image node_id 8 for calling the NS obj's underlying member method code with example usage: obj.sub_ns(name) and returns: NS