code: def suite():
      layout_suite = unittest.defaultTestLoader.loadTestsFromTestCase(
          LayoutTests
      )
      layout_algorithm_suite = (
          unittest.defaultTestLoader.loadTestsFromTestCase(
              LayoutAlgorithmTests
          )
      )
      return unittest.TestSuite([layout_suite, layout_algorithm_suite])
  
imports: import unittest
  from math import hypot
  from igraph import Graph, Layout, BoundingBox, InternalError
  from igraph import umap_compute_weights
label_desc: Use image node_id 1 for calling a global function with example usage: suite() and returns: unittest