}
public function merge( MergeableUpdate $update ) {
- /** @var MessageCacheUpdate $update */
+ /** @var self $update */
Assert::parameterType( __CLASS__, $update, '$update' );
+ '@phan-var self $update';
foreach ( $update->replacements as $code => $messages ) {
$this->replacements[$code] = array_merge( $this->replacements[$code] ?? [], $messages );