code: def test_ratings_None_but_its_okay(self, df_for_interactions):
      Interactions(
          users=df_for_interactions["user_id"],
          items=df_for_interactions["item_id"],
          ratings=None,
          check_num_negative_samples_is_valid=False,
      )
  
imports: import sys
  import numpy
  import pandas
  import pytest
  from collie.interactions import ApproximateNegativeSamplingInteractionsDataLoader, ExplicitInteractions, HDF5Interactions, HDF5InteractionsDataLoader, Interactions, InteractionsDataLoader
label_desc: Use image node_id 3 for calling the TestBadInteractionsInstantiation obj's underlying member method code with example usage: obj.test_ratings_None_but_its_okay(df_for_interactions) without return types