function prelu$1(args) {
	  return new PReLU(args);
	}
Parameterized version of a leaky rectified linear unit.

It follows
`f(x) = alpha * x for x < 0.`
`f(x) = x for x >= 0.`
wherein `alpha` is a trainable weight.

Input shape:
  Arbitrary. Use the configuration `inputShape` when using this layer as the
  first layer in a model.

Output shape:
  Same shape as the input.

@doc {
  heading: 'Layers',
  subheading: 'Advanced Activation',
  namespace: 'layers'
}