code: def visit_AnnAssign(self, node):
      # Pattern-matching:
      # var_name: "VAR_ARGS_ARRAY"
      if (
          node.value is None
          and node.simple == 1
          and isinstance(node.target, ast.Name)
          and isinstance(node.annotation, ast.Constant)
          and node.annotation.value == "VAR_ARGS_ARRAY"
      ):
          self.inline_variables.add(node.target.id)
          return []
      if node.value is not None:
          node.value = self.visit(node.value)
      if node.annotation is not None:
          node.annotation = self.visit(node.annotation)
      if node.target is not None:
          node.target = self.visit(node.target)
      return node
  
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 2 for calling the _VisitorUnrollKernel obj's underlying member method code with example usage: obj.visit_AnnAssign(node) and returns: node, list