public CompletableFuture<GetStoreFileResponse> getStoreFile(GetStoreFileRequest request) {
    return call((stub, controller, done) -> stub.getStoreFile(controller, request, done));
  }
A simple wrapper of the {@link AdminService} for a region server, which returns a
{@link CompletableFuture}. This is easier to use, as if you use the raw protobuf interface, you
need to get the result from the {@link RpcCallback}, and if there is an exception, you need to
get it from the {@link RpcController} passed in.
<p/>
Notice that there is no retry, and this is intentional. We have different retry for different
usage for now, if later we want to unify them, we can move the retry logic into this class.
hbase-server/src/main/java/org/apache/hadoop/hbase/client/AsyncRegionServerAdmin.java