code: def testDRL(self):
      # Regression test for bug #1091891
      g = Graph.Ring(10, circular=False) + 1
      lo = g.layout("drl")
      self.assertTrue(isinstance(lo, Layout))
  
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 13 for calling the LayoutAlgorithmTests obj's underlying member method code with example usage: obj.testDRL() without return types