code: def visit(self, instr):
      global level
      name = instr.opname.replace("+", "_")
  
      method = getattr(self, name, None)
      if method is None:
          raise AttributeError(
              "can not handle instruction %r" % (str(instr))
          )
  
      #        print(' ' * level, "+ visit:", repr(instr))
      #        level += 1
      method(instr)
  
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 4 for calling the Instructions obj's underlying member method code with example usage: obj.visit(instr) without return types