code: def suite():
      matching_suite = unittest.defaultTestLoader.loadTestsFromTestCase(
          MatchingTests
      )
      bipartite_unweighted_suite = (
          unittest.defaultTestLoader.loadTestsFromTestCase(
              MaximumBipartiteMatchingTests
          )
      )
      return unittest.TestSuite(
          [matching_suite, bipartite_unweighted_suite]
      )
  
file_path: python-igraph/tests/test_matching.py
imports: import unittest
  from igraph import Graph, InternalError, Matching
label_desc: Use image node_id 2 for calling a global function with example usage: suite() and returns: unittest