code: def func_call_ast(self):
      tree = super().func_call_ast
      tree.value.args.extend(
          [
              ast.Subscript(
                  value=ast.Name(id="metadata", ctx=ast.Load()),
                  slice=ast.Index(
                      value=ast.Constant(
                          value=f"f{self.f_ix}", kind=None
                      )
                  ),
                  ctx=ast.Load(),
              ),
              ast.Name(id="storage_state", ctx=ast.Load()),
          ]
      )
  
      return tree
  
imports: from distutils.log import warn
  import warnings
  import ast
  from collections import defaultdict
  from typing import Callable, Dict, List, Optional, Sequence, Set
  from abc import ABC, abstractmethod
  from ffcv.pipeline.allocation_query import AllocationQuery
  from ffcv.pipeline.pipeline_spec import PipelineSpec
  from ffcv.pipeline.compiler import Compiler
  from ffcv.pipeline.allocation_query import allocate_query
  from .operation import Operation
  from ..transforms import ModuleWrapper
  from .state import State
  import torch
  import numpy
label_desc: Use image node_id 7 for calling the DecoderNode obj's underlying member method code with example usage: obj.func_call_ast() and returns: tree