code: def testIsInteger(self):
      self.assertFalse(dtype_util.is_integer(np.float64))
  
imports: import dataclasses
  from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.internal import dtype_util
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 1 for calling the DtypeUtilTest obj's underlying member method code with example usage: obj.testIsInteger() without return types