code: def test_invalid_type_conversions(self):
      class A(FromParams):
          def __init__(self, a: int) -> None:
              self.a = a
  
      with pytest.raises(TypeError):
          A.from_params(Params({"a": "1"}))
      with pytest.raises(TypeError):
          A.from_params(Params({"a": 1.0}))
  
imports: from typing import Dict, Iterable, List, Mapping, Optional, Set, Tuple, Union
  import pytest
  import torch
  from allennlp.common import Lazy, Params, Registrable
  from allennlp.common.from_params import FromParams, takes_arg, remove_optional, create_kwargs
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.data import DataLoader, DatasetReader, Tokenizer
  from allennlp.models import Model
  from allennlp.models.archival import load_archive
  from allennlp.common.checks import ConfigurationError
label_desc: Use image node_id 12 for calling the TestFromParams obj's underlying member method code with example usage: obj.test_invalid_type_conversions() without return types