- 'licenses' => isset( $installed['license'] ) ? $installed['license'] : [],
- 'authors' => isset( $installed['authors'] ) ? $installed['authors'] : [],
- 'description' => isset( $installed['description'] ) ? $installed['description'] : '',
+ 'licenses' => $installed['license'] ?? [],
+ 'authors' => $installed['authors'] ?? [],
+ 'description' => $installed['description'] ?? '',