use // for private helper docs

Author: william-ch-databricks

kernel/src/transaction/mod.rs

@@ -682,8 +682,8 @@ impl<S> Transaction<S> {
         self.read_snapshot_opt.is_none()
     }
 
-    /// Returns the read snapshot. Returns an error if this is a create-table transaction.
-    /// To get the `Option<SnapshotRef>` directly, use the `read_snapshot_opt` field.
+    // Returns the read snapshot. Returns an error if this is a create-table transaction.
+    // To get the `Option<SnapshotRef>` directly, use the `read_snapshot_opt` field.
     fn read_snapshot(&self) -> DeltaResult<&Snapshot> {
         self.read_snapshot_opt.as_deref().ok_or_else(|| {
             Error::internal_error("read_snapshot() called on create-table transaction")