code: public static CouchbaseAsyncCluster fromConnectionString(final CouchbaseEnvironment environment,
          final String connectionString) {
          return new CouchbaseAsyncCluster(
              environment,
              ConnectionString.create(connectionString),
              true
          );
      }
docs: Creates a new {@link CouchbaseAsyncCluster} reference using the connection string.
  
  @param environment the custom environment to use for this cluster reference.
  @param connectionString the connection string to identify the remote cluster.
  @return a new {@link CouchbaseAsyncCluster} reference.