src/Viserio/Component/Routing/Route.php
public function where($name, ?string $expression = null): RouteContract
    {
        foreach ($this->parseWhere($name, $expression) as $n => $exp) {
            $this->wheres[$n] = $exp;
        }

        return $this;
    }
public function where($name, ?string $expression = null): RouteContract
    {
        foreach ($this->parseWhere($name, $expression) as $n => $exp) {
            $this->wheres[$n] = $exp;
        }

        return $this;
    }
{@inheritdoc}