code: def _get_size(obs_space):
      return get_preprocessor(obs_space)(obs_space).size
  
file_path: ray/rllib_contrib/qmix/src/rllib_qmix/qmix/model.py
imports: from ray.rllib.models.modelv2 import ModelV2
  from ray.rllib.models.preprocessors import get_preprocessor
  from ray.rllib.models.torch.torch_modelv2 import TorchModelV2
  from ray.rllib.utils.annotations import override
  from ray.rllib.utils.framework import try_import_torch
label_desc: Use image node_id 1 for calling a global function with example usage: _get_size(obs_space) and returns: get_preprocessor