diff --git a/comfy_api/v3/io.py b/comfy_api/v3/io.py
index 39194127..d6b72e33 100644
--- a/comfy_api/v3/io.py
+++ b/comfy_api/v3/io.py
@@ -360,7 +360,6 @@ class Hidden(str, Enum):
     """API_KEY_COMFY_ORG is an API Key generated by ComfyOrg that allows skipping signing into a ComfyOrg account on frontend."""
 
 
-
 @dataclass
 class NodeInfoV1:
     input: dict=None
@@ -508,77 +507,77 @@ class ComfyNodeV3(ABC):
     _DESCRIPTION = None
     @classproperty
     def DESCRIPTION(cls):
-        if not cls._DESCRIPTION:
+        if cls._DESCRIPTION is None:
             cls.GET_SCHEMA()
         return cls._DESCRIPTION
 
     _CATEGORY = None
     @classproperty
     def CATEGORY(cls):
-        if not cls._CATEGORY:
+        if cls._CATEGORY is None:
             cls.GET_SCHEMA()
         return cls._CATEGORY
 
     _EXPERIMENTAL = None
     @classproperty
     def EXPERIMENTAL(cls):
-        if not cls._EXPERIMENTAL:
+        if cls._EXPERIMENTAL is None:
             cls.GET_SCHEMA()
         return cls._EXPERIMENTAL
 
     _DEPRECATED = None
     @classproperty
     def DEPRECATED(cls):
-        if not cls._DEPRECATED:
+        if cls._DEPRECATED is None:
             cls.GET_SCHEMA()
         return cls._DEPRECATED
 
     _API_NODE = None
     @classproperty
     def API_NODE(cls):
-        if not cls._API_NODE:
+        if cls._API_NODE is None:
             cls.GET_SCHEMA()
         return cls._API_NODE
 
     _OUTPUT_NODE = None
     @classproperty
     def OUTPUT_NODE(cls):
-        if not cls._OUTPUT_NODE:
+        if cls._OUTPUT_NODE is None:
             cls.GET_SCHEMA()
         return cls._OUTPUT_NODE
 
     _INPUT_IS_LIST = None
     @classproperty
     def INPUT_IS_LIST(cls):
-        if not cls._INPUT_IS_LIST:
+        if cls._INPUT_IS_LIST is None:
             cls.GET_SCHEMA()
         return cls._INPUT_IS_LIST
     _OUTPUT_IS_LIST = None
 
     @classproperty
     def OUTPUT_IS_LIST(cls):
-        if not cls._OUTPUT_IS_LIST:
+        if cls._OUTPUT_IS_LIST is None:
             cls.GET_SCHEMA()
         return cls._OUTPUT_IS_LIST
 
     _RETURN_TYPES = None
     @classproperty
     def RETURN_TYPES(cls):
-        if not cls._RETURN_TYPES:
+        if cls._RETURN_TYPES is None:
             cls.GET_SCHEMA()
         return cls._RETURN_TYPES
 
     _RETURN_NAMES = None
     @classproperty
     def RETURN_NAMES(cls):
-        if not cls._RETURN_NAMES:
+        if cls._RETURN_NAMES is None:
             cls.GET_SCHEMA()
         return cls._RETURN_NAMES
 
     _OUTPUT_TOOLTIPS = None
     @classproperty
     def OUTPUT_TOOLTIPS(cls):
-        if not cls._OUTPUT_TOOLTIPS:
+        if cls._OUTPUT_TOOLTIPS is None:
             cls.GET_SCHEMA()
         return cls._OUTPUT_TOOLTIPS