<?php  namespace App\Services\Applicants;  use App\Models\Answer; use App\Models\Domain; use App\Models\Applicant; use App\Models\ClientSurvey; use Illuminate\Support\Collection; use App\Services\ClientSurveys\ClientSurveyPpiService;  class ApplicantBaService { 	public function handleUpdateOrCreateAnswers(array $request, Applicant $applicant, ClientSurvey $client_survey): void{}  	public function isInFillablePeriod(?ClientSurvey $client_survey): bool{}  	public function isOnCorrectDomain(?ClientSurvey $client_survey, Domain $domain): bool{}  	public function hasDuplicateEmailQuestionEntry(ClientSurvey $client_survey, Collection $cleaned_answers, ?string $applicant_email = null): bool{} }