public function getValidValues()
{
return [['DE123456789'], ['EE123456789'], ['EL123456789'], ['PT123456789'], ['BE0123456789'], ['PL1234567890'], ['SK1234567890'], ['ATU12345678'], ['BG123456789'], ['BG1234567890'], ['CY12345678A'], ['DK12345678'], ['FI12345678'], ['HU12345678'], ['LU12345678'], ['MT12345678'], ['SI12345678'], ['ESA1234567Z'], ['ESX12345678'], ['ES12345678X'], ['ESX1234567X'], ['IE1234567X'], ['IE1X12345X'], ['IT12345678901'], ['FR12345678901'], ['LV12345678901'], ['LT123456789'], ['LT123456789012'], ['NL123456789B01'], ['CZ12345678'], ['CZ123456789'], ['CZ1234567890'], ['RO12'], ['RO123'], ['RO1234'], ['RO12345'], ['RO123456'], ['RO1234567'], ['RO12345678'], ['RO123456789'], ['RO1234567890'], ['RO4594917'], ['GB123456789'], ['GB123456789012'], ['SE123456789012']];
}