diff --git a/src/primaite/simulator/core.py b/src/primaite/simulator/core.py
index 02481661..aeb4e865 100644
--- a/src/primaite/simulator/core.py
+++ b/src/primaite/simulator/core.py
@@ -11,6 +11,8 @@ from primaite.interface.request import RequestResponse
 
 _LOGGER = getLogger(__name__)
 
+RequestFormat = List[Union[str, int, float]]
+
 
 class RequestPermissionValidator(BaseModel):
     """
@@ -22,7 +24,7 @@ class RequestPermissionValidator(BaseModel):
     """
 
     @abstractmethod
-    def __call__(self, request: List[str], context: Dict) -> bool:
+    def __call__(self, request: RequestFormat, context: Dict) -> bool:
         """Use the request and context parameters to decide whether the request should be permitted."""
         pass
 
@@ -30,7 +32,7 @@ class RequestPermissionValidator(BaseModel):
 class AllowAllValidator(RequestPermissionValidator):
     """Always allows the request."""
 
-    def __call__(self, request: List[str], context: Dict) -> bool:
+    def __call__(self, request: RequestFormat, context: Dict) -> bool:
         """Always allow the request."""
         return True
 
@@ -43,7 +45,7 @@ class RequestType(BaseModel):
     the request can be performed or not.
     """
 
-    func: Callable[[List[Union[str, int, float]], Dict], RequestResponse]
+    func: Callable[[RequestFormat, Dict], RequestResponse]
     """
     ``func`` is a function that accepts a request and a context dict. Typically this would be a lambda function
     that invokes a class method of your SimComponent. For example if the component is a node and the request type is for
@@ -72,8 +74,7 @@ class RequestManager(BaseModel):
     request_types: Dict[str, RequestType] = {}
     """maps request name to an RequestType object."""
 
-    @validate_call
-    def __call__(self, request: List[Union[str, int, float]], context: Dict) -> RequestResponse:
+    def __call__(self, request: RequestFormat, context: Dict) -> RequestResponse:
         """
         Process an request request.
 
@@ -93,8 +94,6 @@ class RequestManager(BaseModel):
                 f"Request {request} could not be processed because {request_key} is not a valid request name",
                 "within this RequestManager",
             )
-            # _LOGGER.error(msg)
-            # raise RuntimeError(msg)
             _LOGGER.debug(msg)
             return RequestResponse(status="unreachable", data={"reason": msg})
 
@@ -207,7 +206,7 @@ class SimComponent(BaseModel):
         return state
 
     @validate_call
-    def apply_request(self, request: List[Union[str, int, float]], context: Dict = {}) -> RequestResponse:
+    def apply_request(self, request: RequestFormat, context: Dict = {}) -> RequestResponse:
         """
         Apply a request to a simulation component. Request data is passed in as a 'namespaced' list of strings.
 
diff --git a/src/primaite/simulator/file_system/file_system.py b/src/primaite/simulator/file_system/file_system.py
index 3ff73a80..9e2a3b0e 100644
--- a/src/primaite/simulator/file_system/file_system.py
+++ b/src/primaite/simulator/file_system/file_system.py
@@ -62,7 +62,7 @@ class FileSystem(SimComponent):
         self._restore_manager.add_request(
             name="file",
             request_type=RequestType(
-                func=lambda request, context: RequestResponse(
+                func=lambda request, context: RequestResponse.from_bool(
                     self.restore_file(folder_name=request[0], file_name=request[1])
                 )
             ),