Myasuka commented on a change in pull request #8091: [hotfix][docs] fix error
in Process Function Doc
URL: https://github.com/apache/flink/pull/8091#discussion_r270832051
##########
File path: docs/dev/stream/operators/process_function.md
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@@ -199,14 +199,14 @@ case class CountWithTimestamp(key: String, count: Long,
lastModified: Long)
/**
* The implementation of the ProcessFunction that maintains the count and
timeouts
*/
-class CountWithTimeoutFunction extends ProcessFunction[(String, String),
(String, Long)] {
+class CountWithTimeoutFunction extends KeyedProcessFunction[Tuple, (String,
String), (String, Long)] {
Review comment:
Why not use `class CountWithTimeoutFunction[K] extends
KeyedProcessFunction[K, (String, String), (String, Long)]`?
If you stick to use `Tuple` as the `KEY`, please import necessary class.
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