code: public static CouchbaseCluster fromConnectionString(final String connectionString) {
          return new CouchbaseCluster(
              DefaultCouchbaseEnvironment.create(),
              ConnectionString.create(connectionString),
              false
          );
      }
docs: Creates a new {@link CouchbaseCluster} reference using the connection string.
  
  The {@link CouchbaseEnvironment} will be automatically created and its lifecycle managed.
  
  @param connectionString the connection string to identify the remote cluster.
  @return a new {@link CouchbaseCluster} reference.