public MongoDBSourceBuilder<T> collectionList(String... collections) {
        this.configFactory.collectionList(collections);
        return this;
    }
Regular expressions that match fully-qualified collection identifiers for collections to be
monitored. Each identifier is of the form {@code <databaseName>.<collectionName>}.
inlong-sort/sort-flink/sort-flink-v1.15/sort-connectors/mongodb-cdc/src/main/java/org/apache/inlong/sort/mongodb/source/MongoDBSourceBuilder.java