class_docstr: An abstract class that has a couple of methods, each having their own
  input/output constraints.
class_docstr_tok: ["An","abstract","class","that","has","a","couple","of","methods",",","each","having","their","own","input\/output","constraints","."]
code: def _check_only_input(
      self, input_dict: Dict[str, Any]
  ) -> Dict[str, Any]:
      pass
  
imports: import abc
  import time
  import unittest
  from typing import Dict, Any, Type
  import numpy
  import torch
  from ray.rllib.core.models.specs.checker import SpecCheckingError
  from ray.rllib.core.models.specs.checker import convert_to_canonical_format, check_input_specs, check_output_specs
  from ray.rllib.core.models.specs.specs_base import TensorSpec, TypeSpec
  from ray.rllib.core.models.specs.specs_dict import SpecDict
  from ray.rllib.utils.annotations import override
  from ray.rllib.utils.nested_dict import NestedDict
label_desc: Use image node_id 6 for calling the AbstractInterfaceClass obj's underlying member method code with example usage: obj._check_only_input(input_dict) without return types