code: def _py_list_pop(list_, i):
      """Overload of list_pop that executes a Python list append."""
      if i is None:
          x = list_.pop()
      else:
          x = list_.pop(i)
      return list_, x
  
imports: import collections
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import cond
  from tensorflow.python.ops import list_ops
  from tensorflow.python.ops import tensor_array_ops
label_desc: Use image node_id 11 for calling a global function with example usage: _py_list_pop(list_, i) and returns: list_,  x