code: def testMapFn(self):
      x = np.asarray([1.0, 2.0])
      mapped_x = tf.map_fn(lambda x: (x[0] + 1, x[1] + 1), (x, x))
  
      self.assertIsInstance(mapped_x[0], np.ndarray)
      self.assertIsInstance(mapped_x[1], np.ndarray)
      self.assertAllClose(mapped_x[0], [2.0, 3.0])
      self.assertAllClose(mapped_x[1], [2.0, 3.0])
  
imports: import numpy
  import tensorflow.compat.v2
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops.numpy_ops import np_math_ops
label_desc: Use image node_id 20 for calling the InteropTest obj's underlying member method code with example usage: obj.testMapFn() without return types