code: def testNonStrField(self):
      with self.assertRaisesRegexp(
          TypeError,
          "Field names must be strings: 1 has type <class 'int'>",
      ):
          structural_tuple.structtuple([1])
  
imports: import tensorflow.compat.v2
  from tensorflow_probability.python.internal import nest_util
  from tensorflow_probability.python.internal import structural_tuple
  from tensorflow_probability.python.internal import test_util
  from tensorflow.python.util import nest
label_desc: Use image node_id 10 for calling the StructTupleTest obj's underlying member method code with example usage: obj.testNonStrField() without return types