code: def to_numpy(tensor):
      if tensor is None:
          return None
      return (
          tensor.detach().cpu().numpy()
          if tensor.requires_grad
          else tensor.cpu().numpy()
      )
  
imports: from abc import ABC, abstractmethod
  import torch
label_desc: Use image node_id 3 for calling the StreamingEncoder obj's underlying member method code with example usage: obj.to_numpy(tensor) and returns: unknown, None