code: def valid_callbacks(cls):
      return set()
  
file_path: torchdiffeq/torchdiffeq/_impl/scipy_wrapper.py
imports: import abc
  import torch
  from scipy.integrate import solve_ivp
  from .misc import _handle_unused_kwargs
label_desc: Use image node_id 3 for calling the ScipyWrapperODESolver obj's underlying member method code with example usage: obj.valid_callbacks(cls) and returns: set