code: def test_get_method(self):
      obj = regularizers.get("l1l2")
      self.assertIsInstance(obj, regularizers.L1L2)
  
      obj = regularizers.get("l1")
      self.assertIsInstance(obj, regularizers.L1)
  
      obj = regularizers.get("l2")
      self.assertIsInstance(obj, regularizers.L2)
  
      obj = regularizers.get("orthogonal_regularizer")
      self.assertIsInstance(obj, regularizers.OrthogonalRegularizer)
  
      obj = regularizers.get(None)
      self.assertEqual(obj, None)
  
      with self.assertRaises(ValueError):
          regularizers.get("typo")
  
imports: import numpy
  from keras import backend
  from keras import regularizers
  from keras import testing
  from keras.regularizers.regularizers import validate_float_arg
label_desc: Use image node_id 6 for calling the RegularizersTest obj's underlying member method code with example usage: obj.test_get_method() without return types