class_docstr: Most tests done in the base class LinearOperatorDerivedClassTest.
code: def test_householder_adjoint_type(self):
      reflection_axis = [1.0, 3.0, 5.0, 8.0]
      operator = householder.LinearOperatorHouseholder(reflection_axis)
      self.assertIsInstance(
          operator.adjoint(), householder.LinearOperatorHouseholder
      )
  
imports: from tensorflow.python.framework import config
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import linalg_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.ops.linalg import linalg
  from tensorflow.python.ops.linalg import linear_operator_householder
  from tensorflow.python.ops.linalg import linear_operator_test_util
  from tensorflow.python.platform import test
label_desc: Use image node_id 7 for calling the LinearOperatorHouseholderTest obj's underlying member method code with example usage: obj.test_householder_adjoint_type() without return types