code: def test_init_lang(self, langs):
      for lang in langs:
          assert isinstance(Corpus(lang), Corpus)
  
imports: import collections
  import itertools
  import numpy
  import pytest
  from spacy.tokens import Doc
  from textacy import Corpus
  from textacy import load_spacy_lang
label_desc: Use image node_id 1 for calling the TestCorpusInit obj's underlying member method code with example usage: obj.test_init_lang(langs) without return types