code: def testNumericSummaryOnEmptyFloat(self):
      x = np.array([], dtype=np.float32)
      out = tensor_format.numeric_summary(x)
      self.assertEqual(
          ["No numeric summary available due to empty tensor."],
          out.lines,
      )
  
imports: import re
  import numpy
  from tensorflow.core.framework import tensor_pb2
  from tensorflow.core.framework import tensor_shape_pb2
  from tensorflow.core.framework import types_pb2
  from tensorflow.python.debug.cli import cli_test_utils
  from tensorflow.python.debug.cli import tensor_format
  from tensorflow.python.debug.lib import debug_data
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 3 for calling the NumericSummaryTest obj's underlying member method code with example usage: obj.testNumericSummaryOnEmptyFloat() without return types