public function entityIdFrom(IEntitySet $entities) : ObjectFieldBuilder
    {
        return new ObjectFieldBuilder($this->type(new ObjectIdType(new EntityIdOptions($entities))));
    }
public function entityIdFrom(IEntitySet $entities) : ObjectFieldBuilder
    {
        return new ObjectFieldBuilder($this->type(new ObjectIdType(new EntityIdOptions($entities))));
    }
public function entityIdFrom ( IEntitySet $ entities ) : ObjectFieldBuilder { return new ObjectFieldBuilder ( $ this -> type ( new ObjectIdType ( new EntityIdOptions ( $ entities ) ) ) ) ; }
Validates the input as a entity id.

@param IEntitySet $entities

@return ObjectFieldBuilder
Validates the input as a entity id .