code: def testSingleFetchNoFeeds(self):
      run_start_intro = cli_shared.get_run_start_intro(
          12, self.const_a, None, {}
      )
  
      # Verify line about run() call number.
      self.assertTrue(
          run_start_intro.lines[1].endswith("run() call #12:")
      )
  
      # Verify line about fetch.
      const_a_name_line = run_start_intro.lines[4]
      self.assertEqual(self.const_a.name, const_a_name_line.strip())
  
      # Verify line about feeds.
      feeds_line = run_start_intro.lines[7]
      self.assertEqual("(Empty)", feeds_line.strip())
  
      # Verify lines about possible commands and their font attributes.
      self.assertEqual("run:", run_start_intro.lines[11][2:])
      annot = run_start_intro.font_attr_segs[11][0]
      self.assertEqual(2, annot[0])
      self.assertEqual(5, annot[1])
      self.assertEqual("run", annot[2][0].content)
      self.assertEqual("bold", annot[2][1])
      annot = run_start_intro.font_attr_segs[13][0]
      self.assertEqual(2, annot[0])
      self.assertEqual(8, annot[1])
      self.assertEqual("run -n", annot[2][0].content)
      self.assertEqual("bold", annot[2][1])
      self.assertEqual("run -t <T>:", run_start_intro.lines[15][2:])
      self.assertEqual(
          [(2, 12, "bold")], run_start_intro.font_attr_segs[15]
      )
      self.assertEqual(
          "run -f <filter_name>:", run_start_intro.lines[17][2:]
      )
      self.assertEqual(
          [(2, 22, "bold")], run_start_intro.font_attr_segs[17]
      )
  
      # Verify short description.
      description = cli_shared.get_run_short_description(
          12, self.const_a, None
      )
      self.assertEqual("run #12: 1 fetch (a:0); 0 feeds", description)
  
      # Verify the main menu associated with the run_start_intro.
      self.assertIn(
          debugger_cli_common.MAIN_MENU_KEY, run_start_intro.annotations
      )
      menu = run_start_intro.annotations[
          debugger_cli_common.MAIN_MENU_KEY
      ]
      self.assertEqual("run", menu.caption_to_item("run").content)
      self.assertEqual("exit", menu.caption_to_item("exit").content)
  
imports: from collections import namedtuple
  from tensorflow.python.debug.cli import cli_shared
  from tensorflow.python.debug.cli import debugger_cli_common
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import errors
  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 variables
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 3 for calling the GetRunStartIntroAndDescriptionTest obj's underlying member method code with example usage: obj.testSingleFetchNoFeeds() without return types