private function format($value)
    {
        if (is_callable($this->formatter)) {
            $value = call_user_func($this->formatter, $value, $this->dataSet);
        }
        return $value;
    }
private function format($value)
    {
        if (is_callable($this->formatter)) {
            $value = call_user_func($this->formatter, $value, $this->dataSet);
        }
        return $value;
    }
private function format ( $ value ) { if ( is_callable ( $ this -> formatter ) ) { $ value = call_user_func ( $ this -> formatter , $ value , $ this -> dataSet ) ; } return $ value ; }
Applies value formatter to read value.

@param int|string|null $value Read value.
@return mixed Processed value.
Applies value formatter to read value .