| Closure | null */ protected string | array | Closure | null $keyBindings = null; /** * @param string | array | Closure | null $bindings */ public function keyBindings(string | array | Closure | null $bindings): static { $this->keyBindings = $bindings; return $this; } /** * @return array | null */ public function getKeyBindings(): ?array { $keyBindings = Arr::wrap($this->evaluate($this->keyBindings)); return count($keyBindings) ? $keyBindings : null; } }