code: def fun(x):
      y = np.sin(x + x)
      return avg(y, y)
  
file_path: autograd/examples/print_trace.py
imports: from __future__ import print_function
  import autograd.numpy
  from autograd.tracer import trace, Node
  from autograd import grad
label_desc: Use image node_id 4 for calling a global function with example usage: fun(x) and returns: avg