public function removeInterest($interest)
{
$updateSetBuilder = (new Riak\Command\Builder\UpdateSet($this->riak))->remove($interest);
$response = (new Riak\Command\Builder\UpdateMap($this->riak))->atLocation($this->location)->updateSet('interests', $updateSetBuilder)->withParameter('returnbody', 'true')->withContext($this->data->getContext())->build()->execute();
if ($response->isSuccess()) {
$this->data = $response->getMap();
}
return $this;
}
