id; } public function getMail(): ?Mail { return $this->mail; } public function setMail(?Mail $mail): self { $this->mail = $mail; return $this; } public function getFilename(): ?string { return $this->filename; } public function setFilename(string $filename): self { $this->filename = $filename; return $this; } public function getContentType(): ?string { return $this->contentType; } public function setContentType(string $contentType): self { $this->contentType = $contentType; return $this; } }