public function rules(): array 	{ 		return [ 			'default_language' => ['required', 'string', new Enum(DomainLanguages::class)], 			'email' => ['required', 'email', 'max:50', Rule::unique('applicants')->where(function ($query) { 				$query->where('client_survey_id', $this->id->client_survey_id); 			})->ignore($this->id, 'id')], 		]; 	}