code: def test_find_duplicate():
      # Find duplicate point
      point = (1, 1, 1)
      duplicate = duplicate_tree.find_duplicate(point)
      assert duplicate is not None
  
file_path: rrcf/test/test_rrcf.py
imports: import json
  import numpy
  import rrcf
label_desc: Use image node_id 9 for calling a global function with example usage: test_find_duplicate() without return types