createdAt; } public function setCreatedAt(\DateTimeImmutable $createdAt): self { $this->createdAt = $createdAt; return $this; } public function getUpdatedAt(): ?\DateTimeImmutable { return $this->updatedAt; } public function setUpdatedAt(\DateTimeImmutable $updatedAt): self { $this->updatedAt = $updatedAt; return $this; } }