code: def test_hyperedges_direct_categories(self):
      h = graphistry.hypergraph(
          hyper_df,
          verbose=False,
          direct=True,
          opts={"CATEGORIES": {"n": ["aa", "bb", "cc"]}},
      )
  
      self.assertEqual(len(h["edges"]), 9)
      self.assertEqual(len(h["nodes"]), 6)
  
imports: import datetime, logging, pandas, pyarrow
  import pytest
  import graphistry, graphistry.plotter
  from common import NoAuthTestCase
label_desc: Use image node_id 3 for calling the TestHypergraphPlain obj's underlying member method code with example usage: obj.test_hyperedges_direct_categories() without return types