Pimcore\Model\Object\Fieldcollection\Definition::addFieldDefinition PHP Method

public addFieldDefinition ( string $key, Data $data )
$key	string
$data	Pimcore\Model\Object\ClassDefinition\Data

    public function addFieldDefinition($key, $data)
    {
        $this->fieldDefinitions[$key] = $data;
        return $this;
    }

Definition