code: def test_invalid_threshold(self):
      self.assertRaisesRegex(
          ValueError,
          re.compile(r"Invalid value for argument `threshold`"),
          lambda: accuracy_metrics.BinaryAccuracy(threshold=-0.5),
      )
      self.assertRaisesRegex(
          ValueError,
          re.compile(r"Invalid value for argument `threshold`"),
          lambda: accuracy_metrics.BinaryAccuracy(threshold=1.5),
      )
  
imports: import re
  import numpy
  from keras import testing
  from keras.metrics import accuracy_metrics
label_desc: Use image node_id 5 for calling the BinaryAccuracyTest obj's underlying member method code with example usage: obj.test_invalid_threshold() without return types