feat(python): optimize stats repr method (#1510)

PR fixes #1507

python/python/tests/test_table.py

@@ -1034,6 +1034,12 @@ async def test_optimize(db_async: AsyncConnection):
         ],
     )
     stats = await table.optimize()
+    expected = (
+        "OptimizeStats(compaction=CompactionStats { fragments_removed: 2, "
+        "fragments_added: 1, files_removed: 2, files_added: 1 }, "
+        "prune=RemovalStats { bytes_removed: 0, old_versions_removed: 0 })"
+    )
+    assert str(stats) == expected
     assert stats.compaction.files_removed == 2
     assert stats.compaction.files_added == 1
     assert stats.compaction.fragments_added == 1

python/src/table.rs

@@ -60,6 +60,13 @@ pub struct Table {
     inner: Option<LanceDbTable>,
 }
 
+#[pymethods]
+impl OptimizeStats {
+    pub fn __repr__(&self) -> String {
+        format!("OptimizeStats(compaction={:?}, prune={:?})", self.compaction, self.prune)
+    }
+}
+
 impl Table {
     pub(crate) fn new(inner: LanceDbTable) -> Self {
         Self {