code: def __enter__(self):
      TagContext.current().add_tags(self.tags)
      return self
  
file_path: pytorch/caffe2/python/layers/tags.py
imports: import functools
  from caffe2.python import context
label_desc: Use image node_id 2 for calling the Tags obj's underlying member method code with example usage: obj.__enter__() and returns: self