code: def _make_attn(self) -> Callable:
      if self.time_mode not in ["conv-only", "only-last-conv"]:
          return partialclass(
              make_time_attn,
              alpha=self.alpha,
              merge_strategy=self.merge_strategy,
          )
      else:
          return super()._make_attn()
  
imports: from typing import Callable, Iterable, Union
  import torch
  from einops import rearrange, repeat
  from sgm.modules.diffusionmodules.model import XFORMERS_IS_AVAILABLE, AttnBlock, Decoder, MemoryEfficientAttnBlock, ResnetBlock
  from sgm.modules.diffusionmodules.openaimodel import ResBlock, timestep_embedding
  from sgm.modules.video_attention import VideoTransformerBlock
  from sgm.util import partialclass
label_desc: Use image node_id 3 for calling the VideoDecoder obj's underlying member method code with example usage: obj._make_attn() and returns: partialclass, super