Collection mapWithKeys(callable $callback)

mixed sendNow(Mailable $mailable)

static void macro(string $name, callable $macro) Register a

Collection zip(mixed $items)

static void swap(mixed $instance) Hotswap the underlying instance

static mixed first(array $array, callable $callback = null, mixed $default = null)

static void setFacadeApplication(Application

Collection only(mixed $keys)

void offsetUnset(string $key) Unset the item at a given offset.

$this prepend(mixed $value, mixed $key = null) Push an item onto the beginning