We want cache to work with dict

tests/test_cache.py

@@ -28,3 +28,12 @@ def test_cache_write_store_load_read(tmp_path):
     c.store()
     c_load = Cache(tmp_path)
     assert c_load.read("key") == "val"
+
+
+def test_cache_write_store_load_read_with_dict(tmp_path):
+    c = Cache(tmp_path)
+    c.write("key", {"key": "val"})
+    c.store()
+    c_load = Cache(tmp_path)
+    assert isinstance(c_load.read("key"), dict)
+    assert c_load.read("key")["key"] == "val"