code: def function(func):
      return Function(func)
  
file_path: tensorflow-upstream/tensorflow/python/framework/experimental/def_function.py
imports: from tensorflow.python.framework.experimental import _unified_api
  from tensorflow.python.framework.experimental import context_stack
  from tensorflow.python.util import nest
label_desc: Use image node_id 1 for calling a global function with example usage: function(func) and returns: Function