code: def __torch_dispatch__(cls, func, types, args, kwargs):
      return NotImplemented
  
imports: import logging
  import torch
  from xformers import _is_triton_available
  from xformers.ops import masked_matmul
label_desc: Use image node_id 16 for calling the BlockSparseTensor obj's underlying member method code with example usage: obj.__torch_dispatch__(cls, func, types, args, kwargs) and returns: NotImplemented