source/Spiral/ORM/Entities/Nodes/AbstractNode.php
final public function fetchNode(string $container): AbstractNode
    {
        if (!isset($this->nodes[$container])) {
            throw new NodeException("Undefined node {$container}");
        }

        return $this->nodes[$container];
    }
final public function fetchNode(string $container): AbstractNode
    {
        if (!isset($this->nodes[$container])) {
            throw new NodeException("Undefined node {$container}");
        }

        return $this->nodes[$container];
    }
final public function fetchNode ( string $ container ) : AbstractNode { if ( ! isset ( $ this -> nodes [ $ container ] ) ) { throw new NodeException ( "Undefined node {$container}" ) ; } return $ this -> nodes [ $ container ] ; }
Fetch sub node.

@param string $container

@return AbstractNode

@throws NodeException
Fetch sub node .