Rename fetchSortValue to FetchSortValue in SortValueFetcher.

This change makes the method public by capitalizing its name, allowing it to be accessed outside its package. This update is necessary for external packages that need to use this method.

rpc/sort.go

@@ -6,7 +6,7 @@ import (
 )
 
 type SortValueFetcher[C any] interface {
-	fetchSortValue(ctx context.Context, client C) (sortValue uint64, err error)
+	FetchSortValue(ctx context.Context, client C) (sortValue uint64, err error)
 }
 
 type SortDirection int
@@ -25,7 +25,7 @@ func Sort[C any](ctx context.Context, clients *Clients[C], sortValueFetch SortVa
 	for i, client := range clients.clients {
 		var v uint64
 		var err error
-		v, err = sortValueFetch.fetchSortValue(ctx, client)
+		v, err = sortValueFetch.FetchSortValue(ctx, client)
 		if err != nil {
 			//do nothing
 		}