diff --git a/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/catalog/SimpleFunctionRegistry.java b/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/catalog/SimpleFunctionRegistry.java
index f2492aa74..5c4e1e8b8 100644
--- a/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/catalog/SimpleFunctionRegistry.java
+++ b/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/catalog/SimpleFunctionRegistry.java
@@ -365,10 +365,24 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
 			this.skipOutputConversion = skipOutputConversion;
 		}
 
+		/**
+		 * !!! INTERNAL USE ONLY !!!
+		 * This is primarily to support s-c-Stream's ability to access
+		 * un-converted payload (e.g., to evaluate expression on some attribute of a payload)
+		 * It is not intended to remain here and will be removed as soon as particular elements
+		 * of stream will be refactored to address this.
+		 */
 		public Function<Object, Message> getEnhancer() {
 			return this.enhancer;
 		}
 
+		/**
+		 * !!! INTERNAL USE ONLY !!!
+		 * This is primarily to support s-c-Stream's ability to access
+		 * un-converted payload (e.g., to evaluate expression on some attribute of a payload)
+		 * It is not intended to remain here and will be removed as soon as particular elements
+		 * of stream will be refactored to address this.
+		 */
 		public void setEnhancer(Function<Object, Message> enhancer) {
 			this.enhancer = enhancer;
 		}