class_docstr: Test the Polynomial kernel.
class_docstr_tok: ["Test","the","Polynomial","kernel","."]
code: def testShifttNonPositiveIsOk(self):
      # No exception expected
      k = polynomial.Polynomial(shift=-1.0, validate_args=True)
      self.evaluate(k.apply([1.0], [1.0]))
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.math import gradient
  from tensorflow_probability.python.math.psd_kernels import polynomial
label_desc: Use image node_id 5 for calling the PolynomialTest obj's underlying member method code with example usage: obj.testShifttNonPositiveIsOk() without return types