code: public static Observable<Intent> fromBroadcast(Context context, IntentFilter intentFilter) {
          return fromBroadcast(context, intentFilter, NO_OP_ORDERED_BROADCAST_STRATEGY);
      }
docs: Create {@link Observable} that wraps {@link BroadcastReceiver} and emits received intents.
  
  @param context      the context the {@link BroadcastReceiver} will be created from
  @param intentFilter the filter for the particular intent
  @return {@link Observable} of {@link Intent} that matches the filter