public function getStandardRadioDemographicQuestionsStatisticExcel(): Collection 	{ 		$client_survey_demographic_question_ids = []; 		$applicant_ids = $this->getQuestionAndApplicantIds()['applicant_ids'];  		foreach ($this->survey->clientSurvey as $client_survey) { 			$questions = $client_survey->demographicQuestions()->whereIn('type', [QuestionType::StandardRadio])->get();  			if ($questions->count()) { 				array_push($client_survey_demographic_question_ids, $questions->pluck('id')->toArray()); 			} 		}  		$client_survey_demographic_question_ids = collect($client_survey_demographic_question_ids)->flatten(1)->toArray(); 		$client_survey_demographic_question_ids = array_unique($client_survey_demographic_question_ids);  		return Question::whereHas('answers', function ($query) use ($applicant_ids) { 			$query->whereIn('applicant_id', $applicant_ids); 		})->whereIn('id', $client_survey_demographic_question_ids)->get(); 	}