Builder getBaseQuery()

$this setObservableEvents(array $observables) Set the observable event

mixed getParentKey() Get the key value of the parent's local key.

Builder getRelationCountQuery(

string relatedUpdatedAt() Get the name of the related model's "updated

$this setPerPage(int $perPage) Set the number of models to return per page

mixed getKey() Get the value of the model's primary key.

void __construct(Builder $query,

static void unsetEventDispatcher() Unset the event dispatcher

string getOtherKey() Get the "other key" column name.