code: def testMapVariable(self):
      v = resource_variable_ops.ResourceVariable([1, 2])
      self.evaluate(v.initializer)
  
      def loop_fn(x):
          return x + 1
  
      result = map_fn.map_fn(loop_fn, v)
      expected_result = [2, 3]
      self.assertAllEqual(result, expected_result)
  
imports: import numpy
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gradients_impl
  from tensorflow.python.ops import init_ops
  from tensorflow.python.ops import map_fn
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.ops import variable_scope
  from tensorflow.python.ops import variables
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.ops.ragged import ragged_tensor
  import tensorflow.python.ops.tensor_array_grad
  from tensorflow.python.platform import test
label_desc: Use image node_id 5 for calling the MapFnTest obj's underlying member method code with example usage: obj.testMapVariable() and returns: unknown