anchor.diff:  --------------------------------------------------
   include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[flush-synced-notfound]
   --------------------------------------------------
  -<1> Do something if the indices to be flushed were not found+<1> Do something if the indices to be flushed were not found
  
positive.code: [[java-rest-high-flush]]
  === Flush Synced API
  
  [[java-rest-high-flush-synced-request]]
  
negative.code: provided as an argument
  <2> Called in case of failure. The raised exception is provided as an argument
  
  [[java-rest-high-flush-synced-response]]
  ==== Flush Synced Response
  
  The returned `SyncedFlushResponse` allows to retrieve information about the
  