$mastodonApi->accounts->unblock('{id}');

MastodonApi\Entities\Relationship Object
(
	[id] => {id}
	[following] => {following}
	[followed_by] => {followed_by}
	[blocking] => {blocking}
	[blocked_by] => {blocked_by}
	[muting] => {muting}
	[muting_notifications] => {muting_notifications}
	[requested] => {requested}
	[domain_blocking] => {domain_blocking}
	[showing_reblogs] => {showing_reblogs}
	[endorsed] => {endorsed}
)