(value: unknown)
| 30 | } |
| 31 | |
| 32 | function asString(value: unknown): string | null { |
| 33 | if (typeof value === 'string' && value.trim() !== '') {return value;} |
| 34 | return null; |
| 35 | } |
| 36 | |
| 37 | function asMode(value: unknown): VisualizerMode { |
| 38 | const s = typeof value === 'string' ? value.toLowerCase() : ''; |