Bohdan Veselovskyi, Graduate Student, Institute of International Relations, Taras Shevchenko National University of Kyiv, Ukraine and Chief Legal Consultant, Secretariat of the Parliament of Ukraine. For correspondence: <mailto:bogdan15081995@gmail.com>.Academic adviser: Prof Kseniia Smyrnova, Vice-Rector of Taras Shevchenko National University of Kyiv, Ukraine.