src/Colorium/Orm/Mapper.php
public function builder($entity)
    {
        $entity = $this->entity($entity);
        return new Mapper\Builder($entity, $this->pdo);
    }
public function builder($entity)
    {
        $entity = $this->entity($entity);
        return new Mapper\Builder($entity, $this->pdo);
    }
Generate builder

@param string $entity
@return Mapper\Builder