public SearchRequest build() {
            return new SearchRequest(
                    searchRequestSource,
                    key,
                    query,
                    resultRequests,
                    dateTimeSettings,
                    incremental,
                    timeout);
        }
@param value The timeout period in ms. Can be null.
@return The {@link Builder}, enabling method chaining
stroom-query/stroom-query-api/src/main/java/stroom/query/api/SearchRequest.java