code: def muladd(x, y, z):
      return MulAdd()(x, y, z)
  
file_path: chainerrl/chainerrl/functions/mul_add.py
imports: import chainer
  from chainer import cuda
label_desc: Use image node_id 1 for calling a global function with example usage: muladd(x, y, z) and returns: MulAdd