docstr: Need this when adding a BaseListVariable and a ConstantVariable together.
  Happens in detectron2.
docstr_tok: ["Need","this","when","adding","a","BaseListVariable","and","a","ConstantVariable","together",".","Happens","in","detectron2","."]
code: def items(self):
      """
      Need this when adding a BaseListVariable and a ConstantVariable together.
      Happens in detectron2.
      """
      return self.unpack_var_sequence(tx=None)
  
imports: import operator
  from typing import Dict, List
  import torch
  from torch._dynamo.source import GetItemSource
  from ..None import variables
  from ..exc import unimplemented, UserError, UserErrorType
  from ..guards import GuardBuilder, install_guard
  from ..utils import istype, np
  from .base import typestr, VariableTracker
label_desc: Use image node_id 7 for calling the ConstantVariable obj's underlying member method code with example usage: obj.items() and returns: self