code: def test_from_params_has_args(self):
      class Foo(FromParams):
          def __init__(self, a: int, *args) -> None:
              self.a = a
  
      foo = Foo.from_params(Params({"a": 2}))
      assert foo.a == 2
  
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 39 for calling the TestFromParams obj's underlying member method code with example usage: obj.test_from_params_has_args() without return types