function = $function; $this->position = $position; $this->valueBefore = $valueBefore; $this->valueAfter = $valueAfter; } public function getFunction() : string { return $this->function; } public function getPosition() : int { return $this->position; } /** * @return mixed */ public function getValueBefore() { return $this->valueBefore; } /** * @return mixed */ public function getValueAfter() { return $this->valueAfter; } }