code: def suite():
      cycle_suite = unittest.defaultTestLoader.loadTestsFromTestCase(
          CycleTests
      )
      return unittest.TestSuite([cycle_suite])
  
file_path: python-igraph/tests/test_cycles.py
imports: import random
  import unittest
  from igraph import Graph
label_desc: Use image node_id 1 for calling a global function with example usage: suite() and returns: unittest