//      Изменение
        public static void updateApplicant(string id)
        {
            getCollections();

            var filter = Builders <Applicant> .Filter.Eq("_id", new ObjectId(id));

            var applicant = MongoHelper.applicant_collection.Find(filter).FirstOrDefault();

            var update = Builders <Applicant> .Update
                         .Set("history", Fabric.getListEvent(applicant))
                         .Set("age", 25)
                         .Set("contacts.email", "*****@*****.**");

            MongoHelper.applicant_collection.UpdateOne(filter, update);
        }
        //      Создание
        public static void createApplicant()
        {
            getCollections();
            var age       = 30;
            var applicant = new Applicant
            {
                name           = "Павел Чехов",
                age            = age,
                password       = Fabric.faker.Internet.Password(),
                location       = Fabric.getLocation(),
                contacts       = Fabric.getContacts(),
                education      = Fabric.getListEducation(DateTime.Now.AddYears(18 - age)),
                experience     = Fabric.getListExperience(DateTime.Now.AddYears(18 - age)),
                specialization = Fabric.getListSpecialization(),
                views          = Fabric.getViewsVacancy()
            };

            MongoHelper.applicant_collection.InsertOne(applicant);
        }