code: def test_if_elif_else(self):
      source = "if a: b\nelif x: c\nelse: d"
      self.assertDepends(
          source,
          {
              ("b", "a"),
              ("c", "x"),
              ("c", "a"),
              ("d", "a"),
              ("d", "x"),
              ("x", "a"),
          },
          {"a", "b", "c", "d", "x"},
          set(),
      )
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import ast
  from ...asttools.visitors.graph_visitor import GraphGen
  from ...asttools.visitors.graph_visitor import DiGraph
  from ...asttools.tests import AllTypesTested, skip_networkx
label_desc: Use image node_id 27 for calling the Test obj's underlying member method code with example usage: obj.test_if_elif_else() without return types