class_docstr: Test exclusion of ops which are not supported in INT32 mode by TF-TRT
code: def GraphFn(self, x):
      dtype = x.dtype
      b = self._ConstOp((4, 10), dtype)
      x = math_ops.matmul(x, b)
      b = self._ConstOp((10,), dtype)
      x = nn.bias_add(x, b)
      return array_ops.identity(x, name="output_0")
  
imports: import numpy
  from tensorflow.python.compiler.tensorrt.test import tf_trt_integration_test_base
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import nn
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the ExcludeUnsupportedInt32Test obj's underlying member method code with example usage: obj.GraphFn(x) and returns: array_ops