public Request searchOnlineAsync(@NonNull Query query, @NonNull final CompletionHandler completionHandler) {
        return searchOnlineAsync(query, /* requestOptions: */ null, completionHandler);
    }
public Request searchOnlineAsync(@NonNull Query query, @NonNull final CompletionHandler completionHandler) {
        return searchOnlineAsync(query,  null, completionHandler);
    }
public Request searchOnlineAsync ( @ NonNull Query query , @ NonNull final CompletionHandler completionHandler ) { return searchOnlineAsync ( query , /* requestOptions: */ null , completionHandler ) ; }
Search the online API.

@param query Search query.
@param completionHandler The listener that will be notified of the request's outcome.
@return A cancellable request.
Search the online API .