code: public <T> RxLoader<T> create(Observable<T> observable, RxLoaderObserver<T> observer) {
          return new RxLoader<T>(manager, DEFAULT, observable, observer);
      }
docs: Creates a new {@link me.tatarka.rxloader.RxLoader} that manages the given {@link
  rx.Observable}. It uses the {@link me.tatarka.rxloader.RxLoaderManager#DEFAULT} tag. This
  should be called in {@link android.app.Activity#onCreate(android.os.Bundle)} or similar.
  
  @param observable the observable to manage
  @param observer   the observer that receives the observable's callbacks
  @param <T>        the observable's value type
  @return a new {@code RxLoader}
  @see me.tatarka.rxloader.RxLoader