Add get_cache method to ChatService

src/backend/langflow/services/chat/service.py

@@ -235,6 +235,12 @@ class ChatService(Service):
             except Exception as exc:
                 logger.error(f"Error closing connection: {exc}")
             self.disconnect(client_id)
+            
+    def get_cache(self, client_id: str) -> Any:
+        """
+        Get the cache for a client.
+        """
+        return self.chat_cache.get(client_id)
 
 
 def dict_to_markdown_table(my_dict):
@@ -257,4 +263,4 @@ def list_of_dicts_to_markdown_table(dict_list):
         row = [str(row_dict.get(header, "")) for header in headers]
         markdown_table += "| " + " | ".join(row) + " |\n"
 
-    return markdown_table
+    return markdown_table