From docs: ``` /** * Abstraction over an RxJava ...

# rx

[alex.hart]

From docs:

/**
 * Abstraction over an RxJava {@link MaybeObserver} that allows associating
 * a resource with it.
 * <p>
 * All methods are safe to call from multiple threads.
 * <p>
 * Calling onSuccess, onError or onComplete multiple times has no effect.
 *
 * @param <T> the value type to emit
 */

Unless you can find a testcase where you can break this, I wouldn’t worry about it.