Phpml\NeuralNetwork\Layer::addNode PHP Method

    public function addNode(Node $node)
    {
        $this->nodes[] = $node;
    }

 public function testAddNodesToLayer()
 {
     $layer = new Layer();
     $layer->addNode($node1 = new Neuron());
     $layer->addNode($node2 = new Neuron());
     $this->assertEquals([$node1, $node2], $layer->getNodes());
 }