code: def call(self, gm) -> PassResult:
      for node in gm.graph.nodes:
          if node.op == "call_function" and node.target == torch.div:
              node.target = torch.sub
  
imports: import torch
  import torch.fx
  from torch.fx.passes.infra.pass_base import PassBase, PassResult
  from torch.fx.passes.infra.pass_manager import _topological_sort_passes, pass_result_wrapper, PassManager, this_before_that_pass_constraint
  from torch.testing._internal.common_utils import TestCase
label_desc: Use image node_id 1 for calling the ReplaceDivWithSubPass obj's underlying member method code with example usage: obj.call(gm) without return types