(fix) Added missing prompts/get (#748)

Signed-off-by: Ian Molloy <molloyim@us.ibm.com>

Author: imolloy

mcpgateway/cache/session_registry.py

@@ -1277,7 +1277,6 @@ async def generate_response(self, message: Dict[str, Any], transport: SSETranspo
             >>> # Response: {}
         """
         result = {}
-
         if "method" in message and "id" in message:
             try:
                 method = message["method"]