protected function submodules(StudyModuleAcademicPeriod $module) {
        return $this->validateCollection($module->module()->first()->submodules()->active()->get());
    }
protected function submodules(StudyModuleAcademicPeriod $module) {
        return $this->validateCollection($module->module()->first()->submodules()->active()->get());
    }
protected function submodules ( StudyModuleAcademicPeriod $ module ) { return $ this -> validateCollection ( $ module -> module ( ) -> first ( ) -> submodules ( ) -> active ( ) -> get ( ) ) ; }
Get the submodules to migrate.

@param StudyModuleAcademicPeriod $module
@return mixed
Get the submodules to migrate .