code: def delanno(node, key, field_name="___pyct_anno"):
      annotations = getattr(node, field_name)
      del annotations[key]
      if not annotations:
          delattr(node, field_name)
          node._fields = tuple(
              f for f in node._fields if f != field_name
          )
  
file_path: tensorflow/tensorflow/python/autograph/pyct/anno.py
imports: import enum
  import gast
label_desc: Use image node_id 5 for calling a global function with example usage: delanno(node, key, field_name) without return types