def METHOD_NAME(self):
    code = '''\
    def func(x):
        a = dict()
        b = {i: i**2 for i in range(10)}
        c = x
    print(func({1:2, 'x':7}))
    '''
    types = self._test(code)
    self.assertIn(('func', (1, 0)), types)
    variables = types.pop(('func', (1, 0)))
    self.assertFalse(types)
    self.assertEqual({'a': set(['dict']), 'b': set(['dict']), 'c': set(['dict']), 'x': set(['dict'])}, variables)