code: def pop_doc(stmnts):
      doc = pop_assignment(stmnts, "__doc__")
  
      assert isinstance(doc, _ast.Str) or doc is None
  
      return doc
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  from ..decompiler.simple_instructions import SimpleInstructions
  from ..decompiler.control_flow_instructions import CtrlFlowInstructions
  import _ast
  from ..asttools import print_ast
  from ..utils import py3, py3op, py2op
label_desc: Use image node_id 1 for calling a global function with example usage: pop_doc(stmnts) and returns: doc