code: def visit_For(self, node):
      if (
          not isinstance(node.iter, ast.Call)
          or node.iter.func.id != "range"
          or len(node.iter.args) != 1
          or not isinstance(node.iter.args[0], ast.Call)
          or node.iter.args[0].func.id != "len"
          or len(node.iter.args[0].args) != 1
          or node.iter.args[0].args[0].id not in self.inline_variables
      ):
          node.body = [self.visit(x) for x in node.body]
          return node
      # We know we have to modify this loop
      new_nodes = []
      for i in range(self.N):
          unroller = _ForLoopUnroller(
              target=node.target.id,
              inline_variables=self.inline_variables,
              loop_iter=i,
          )
          for body in node.body:
              body = copy.deepcopy(body)
              new_node = ast.fix_missing_locations(unroller.visit(body))
              new_node = self.visit(new_node)
              new_nodes.append(new_node)
      return new_nodes
  
file_path: xformers/xformers/triton/vararg_kernel.py
imports: import ast
  import copy
  import functools
  import linecache
  import sys
  from typing import Any, Dict, List
  import triton
label_desc: Use image node_id 4 for calling the _VisitorUnrollKernel obj's underlying member method code with example usage: obj.visit_For(node) and returns: new_nodes, node