Send invite programatically

From a cursory glance, it seems that there isn't a single function you could use to create an invite. I need to send invites programatically, so hopefully I come up with some solution, but until then, has anyone else tackled the problem in the last two years?

In the 7.x-4.x version of this module it's all about entities. You can create a new invitation (with email) by doing something like this

$invite = entity_create('invite', array('type' => 'invite_by_email'));

$invite->field_invitation_email_address['und'][0]['value'] = 'whatever@gmail.com';
$invite->field_invitation_email_subject['und'][0]['value'] = '[invite:inviter:name] has invited you to a meeting';
$invite->field_invitation_email_body['und'] = array();

invite_save($invite);

Very good @rimu.

Your answer can help many users.

Thank you very much.