style: fix mypy type inference for _default_mappings

GunaPalanivel · GunaPalanivel · commit 8f85f8d7f5e0 · 2026-03-19T13:29:12.000+05:30
diff --git a/integrations/elasticsearch/src/haystack_integrations/document_stores/elasticsearch/document_store.py b/integrations/elasticsearch/src/haystack_integrations/document_stores/elasticsearch/document_store.py
@@ -136,7 +136,7 @@ def __init__(
             raise ValueError(msg)
 
         if not self._custom_mapping:
-            self._default_mappings = {
+            self._default_mappings: dict[str, Any] = {
                 "properties": {
                     "embedding": {
                         "type": "dense_vector",
