class_docstr: Constrains the weights to be non-negative.
code: def __call__(self, w):
      w = backend.convert_to_tensor(w)
      return w * ops.cast(ops.greater_equal(w, 0.0), dtype=w.dtype)
  
imports: from keras import backend
  from keras import ops
  from keras.api_export import keras_export
label_desc: Use image node_id 1 for calling the NonNeg obj's underlying member method code with example usage: obj.__call__(w) and returns: unknown