linear graph

class MyStore implements MemMemov\Quatro\StoreInterface { }

$myStore = new MyStore();

$quatro = new MemMemov\Quatro\Quatro($myStore);

Create new nodes

$n1 = $quatro->create(); $n2 = $quatro->create(); $n3 = $quatro->create();

Connect nodes

$n1->add($n2); $n1->add($n3);

Iterate over child nodes

$n1->each(function($node) {

});

Find a node by its ID

$n3 = $quatro->read(3);