public function remainings($feature)
    {
        return ((int) $this->value($feature) - (int) $this->consumed($feature));
    }
public function remainings($feature)
    {
        return ((int) $this->value($feature) - (int) $this->consumed($feature));
    }
public function remainings ( $ feature ) { return ( ( int ) $ this -> value ( $ feature ) - ( int ) $ this -> consumed ( $ feature ) ) ; }
Get the available uses.

@param  string $feature
@return int
Get the available uses .