(message: string | string[] | unknown)
| 123 | } |
| 124 | |
| 125 | function describeMessage(message: string | string[] | unknown): string { |
| 126 | if (Array.isArray(message)) return message.join(', '); |
| 127 | if (typeof message === 'string') return message; |
| 128 | return String(message); |
| 129 | } |