code: def test_get_top_k_recommendations(model_fit, df_clean):
      query_id = "ej795nks"
      displayed_top_k = model_fit.get_top_k_recommendations(
          df_clean, query_id=query_id
      )
      assert len(displayed_top_k.data) == K
  
file_path: recommenders/tests/unit/recommenders/models/test_tfidf_utils.py
imports: import pytest
  import scipy
  import pandas
  from recommenders.models.tfidf.tfidf_utils import TfidfRecommender
label_desc: Use image node_id 12 for calling a global function with example usage: test_get_top_k_recommendations(model_fit, df_clean) without return types