php-ml/src/Phpml/NeuralNetwork/Node/Bias.php

<?php

declare (strict_types = 1);

namespace Phpml\NeuralNetwork\Node;

use Phpml\NeuralNetwork\Node;

class Bias implements Node
{
    /**
     * @return float
     */
    public function getOutput(): float
    {
        return 1.0;
    }
}