src/Pool.php
public function registerProducer($type, ProducerInterface $producer)
    {
        $registered_type = $this->requireRegisteredType($type);

        if (empty($this->producers[$registered_type])) {
            if ($producer instanceof ContainerAccessInterface && $this->hasContainer()) {
                $producer->setContainer($this->getContainer());
            }

            $this->producers[$registered_type] = $producer;
        } else {
            throw new LogicException("Producer for '$type' is already registered");
        }
    }
public function registerProducer($type, ProducerInterface $producer)
    {
        $registered_type = $this->requireRegisteredType($type);

        if (empty($this->producers[$registered_type])) {
            if ($producer instanceof ContainerAccessInterface && $this->hasContainer()) {
                $producer->setContainer($this->getContainer());
            }

            $this->producers[$registered_type] = $producer;
        } else {
            throw new LogicException("Producer for '$type' is already registered");
        }
    }
Register producer instance for the given type.

@param string            $type
@param ProducerInterface $producer