code: def softsign(x):
      """Softsign activation function.
  
      Softsign is defined as: `softsign(x) = x / (abs(x) + 1)`.
  
      Args:
          x: Input tensor.
      """
      return ops.softsign(x)
  
imports: from keras import backend
  from keras import ops
  from keras.api_export import keras_export
label_desc: Use image node_id 8 for calling a global function with example usage: softsign(x) and returns: ops