code: def test_default(doc_long_en):
      result = kt.textrank(doc_long_en)
      assert isinstance(result, list) and len(result) > 0
      assert all(
          isinstance(ts, tuple) and len(ts) == 2 for ts in result
      )
      assert all(
          isinstance(ts[0], str) and isinstance(ts[1], float)
          for ts in result
      )
  
file_path: textacy/tests/extract/keyterms/test_textrank.py
imports: import pytest
  import textacy
  from textacy.extract import keyterms
label_desc: Use image node_id 2 for calling a global function with example usage: test_default(doc_long_en) without return types