src/Riak/Command/Builder/UpdateMap.php
public function updateCounter($key, IncrementCounter $builder)
    {
        $this->update($key, Riak\DataType\Counter::TYPE, $builder);

        return $this;
    }
public function updateCounter($key, IncrementCounter $builder)
    {
        $this->update($key, Riak\DataType\Counter::TYPE, $builder);

        return $this;
    }
@param $key
@param IncrementCounter $builder

@return $this