code: def GET_ITER(self, instr):
      for_iter = self.ilst.pop(0)
  
      if for_iter.opname == "CALL_FUNCTION":
          call_function = for_iter
          assert call_function.oparg == 1
  
          sequence = self.ast_stack.pop()
          function = self.ast_stack.pop()
  
          if function.name == "<listcomp>":
              self.extract_listcomp(function, sequence)
          elif function.name == "<setcomp>":
              self.extract_setcomp(function, sequence)
          elif function.name == "<dictcomp>":
              self.extract_dictcomp(function, sequence)
          else:
              assert False, function.name
  
      elif for_iter.opname == "FOR_ITER":
          self.make_list_comp(instr, for_iter)
      else:
          assert False
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import opcode
  import _ast
  from ..bytecodetools.instruction import Instruction
  from ..asttools.visitors.print_visitor import print_ast
  from ..utils import py3op, py2op, py3
label_desc: Use image node_id 15 for calling the CtrlFlowInstructions obj's underlying member method code with example usage: obj.GET_ITER(instr) without return types