diff --git a/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/filter/ratelimit/RateLimiter.java b/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/filter/ratelimit/RateLimiter.java
index c696bae4..a45c49c1 100644
--- a/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/filter/ratelimit/RateLimiter.java
+++ b/spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/filter/ratelimit/RateLimiter.java
@@ -6,6 +6,7 @@ import reactor.core.publisher.Mono;
  * @author Spencer Gibb
  */
 public interface RateLimiter {
+	//TODO: move ints to tuple
 	Mono<Response> isAllowed(String id, int replenishRate, int burstCapacity);
 
 	class Response {