mixed pop() Get and remove the last item from the collection.

array getRelations() Get all the loaded relations for the instance.

$this push(mixed $value) Push an item onto the end of the collection.

static void cacheMutatedAttributes(string $class) Extract and

Collection uniqueStrict(string|callable|null $key = null)

bool containsStrict(mixed $key, mixed $value = null) Determine if an item

Collection whereStrict(string $key, mixed $value)

bool totallyGuarded() Determine if the model is totally guarded.

bool has(mixed $key) Determine if an item exists in the collection by key

bool offsetExists(mixed $key) Determine if an item exists at an offset