public function validTagsProvider()
{
return [[['Key' => 'Name', 'Value' => 'Bar']], [['Key' => str_repeat('A', 127), 'Value' => 'Bar']], [['Key' => 'Name', 'Value' => str_repeat('A', 255)]], [['Key' => 'Name', 'Value' => base64_encode('&*#,!')]]];
}