code: func (o *InvitationManager) HasPhoneInvite(globalid string, phonenumber string) (hasInvite bool, err error) {
  	count, err := o.collection.Find(bson.M{"organization": globalid, "phonenumber": phonenumber}).Count()
  	return count != 0, err
  }
docs: // HasPhoneInvite Checks if a phonenumber has an invite to an organization