code: def testPrintPlaceholderGeneration(self):
      tensor = math_ops.range(10)
      with self.captureWritesToStream(sys.stderr) as printed:
          print_op = logging_ops.print_v2("{}6", {"{}": tensor * 10})
          self.evaluate(print_op)
      expected = "{}6 {'{}': [0 10 20 ... 70 80 90]}"
      self.assertIn((expected + "\n"), printed.contents())
  
imports: import os
  import string
  import sys
  import tempfile
  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 ops
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import control_flow_assert
  from tensorflow.python.ops import gradients_impl
  from tensorflow.python.ops import logging_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import string_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import test
label_desc: Use image node_id 8 for calling the PrintV2Test obj's underlying member method code with example usage: obj.testPrintPlaceholderGeneration() without return types