algoliasearch/src/main/java/com/algolia/search/saas/Client.java
public Request multipleQueriesAsync(final @NonNull List<IndexQuery> queries, final MultipleQueriesStrategy strategy, @NonNull CompletionHandler completionHandler) {
        return multipleQueriesAsync(queries, strategy, /* requestOptions: */ null, completionHandler);
    }
public Request multipleQueriesAsync(final @NonNull List<IndexQuery> queries, final MultipleQueriesStrategy strategy, @NonNull CompletionHandler completionHandler) {
        return multipleQueriesAsync(queries, strategy, /* requestOptions: */ null, completionHandler);
    }
Run multiple queries, potentially targeting multiple indexes, with one API call.

@param queries           The queries to run.
@param strategy          The strategy to use.
@param completionHandler The listener that will be notified of the request's outcome.
@return A cancellable request.