>|null $permissions */ public static function fromArray(?array $permissions): self { return new self($permissions); } /** @return array */ public function getViewUserGroups(): array { return $this->permissions['view']; } /** @return array */ public function getEditUserGroups(): array { return $this->permissions['edit']; } /** @return array */ public function getOwnUserGroups(): array { return $this->permissions['own']; } /** @return array>|null */ public function normalize(): ?array { return $this->permissions; } }