code: def testUninitialized(self):
      with self.assertRaisesRegex(
          errors.FailedPreconditionError, "uninitialized"
      ):
          with self.session() as sess, self.test_scope():
              v = resource_variable_ops.ResourceVariable([1, 2])
              sess.run(v[:].assign([1, 2]))
  
imports: import re
  import numpy
  from tensorflow.compiler.tests import xla_test
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gen_state_ops
  from tensorflow.python.ops import init_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.ops import state_ops
  from tensorflow.python.ops import variable_scope
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import googletest
  from tensorflow.python.training.gradient_descent import GradientDescentOptimizer
label_desc: Use image node_id 2 for calling the SliceAssignTest obj's underlying member method code with example usage: obj.testUninitialized() without return types