class_docstr: Most tests done in the base class LinearOperatorDerivedClassTest.
code: def test_scalar_reflection_axis_raises(self):
      with self.assertRaisesRegex(
          ValueError, "must have at least 1 dimension"
      ):
          householder.LinearOperatorHouseholder(1.0)
  
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 6 for calling the LinearOperatorHouseholderTest obj's underlying member method code with example usage: obj.test_scalar_reflection_axis_raises() without return types