code: def test_function_call_in_with(self):
      def foo(_):
          pass
  
      def test_fn(a):
          with foo(a):
              return a
  
      node = self._parse_and_analyze(test_fn)
      fn_body = node.body
  
      self.assertHasDefs(fn_body[0].items[0].context_expr.func, 0)
      self.assertHasDefs(fn_body[0].items[0].context_expr.args[0], 1)
  
imports: from tensorflow.python.autograph.pyct import anno
  from tensorflow.python.autograph.pyct import cfg
  from tensorflow.python.autograph.pyct import naming
  from tensorflow.python.autograph.pyct import parser
  from tensorflow.python.autograph.pyct import qual_names
  from tensorflow.python.autograph.pyct import transformer
  from tensorflow.python.autograph.pyct.static_analysis import activity
  from tensorflow.python.autograph.pyct.static_analysis import reaching_definitions
  from tensorflow.python.platform import test
label_desc: Use image node_id 10 for calling the ReachingDefinitionsAnalyzerTest obj's underlying member method code with example usage: obj.test_function_call_in_with() and returns: a