code: def time_fan_out_fan_in_forward_pass():
      if MASTER_BRANCH:
          forward_pass(fan_out_fan_in, (2.0,), {})
      else:
          start_node = VJPNode.new_root()
          trace(start_node, fan_out_fan_in, x)
  
imports: import numpy
  import autograd.numpy
  from autograd import grad
label_desc: Use image node_id 13 for calling a global function with example usage: time_fan_out_fan_in_forward_pass() without return types