from; } public function getTo(): string { return $this->to; } public function getExtension(): string { return $this->extension; } public function getDisplayName(): string { return $this->displayName; } /** * @return array{from: string, to: string, extension: string, displayName: string} * * @since 31.0.0 */ public function jsonSerialize(): array { return [ 'from' => $this->from, 'to' => $this->to, 'extension' => $this->extension, 'displayName' => $this->displayName, ]; } }