Fix template for operators without parameters

Author: rycwo

metafold/func.py

@@ -101,17 +101,18 @@ def __call__(self, eval_: Evaluator) -> TypedResult[Literal[FuncType.FLOAT]]:
 
 
 class ComputeCurvatures_Parameters(TypedDict, total=False):
+    pass
 
 
 class ComputeCurvatures(TypedFunc[Literal[FuncType.VEC3F]]):
     def __init__(
         self,
-        samples: Func,
+        volume: Func,
         parameters: Optional[ComputeCurvatures_Parameters] = None,
     ):
         self.inputs: Optional[dict[str, Func]]
         self.inputs = {
-            "Samples": samples,
+            "Volume": volume,
         }
         self.assets: Optional[Assets]
         self.assets = None

metafold/func.py.in

@@ -77,6 +77,7 @@ def PointSource(eval_: Evaluator) -> TypedResult[Literal[FuncType.VEC3F]]:
 
 
 class {{ $type }}_Parameters(TypedDict, total=False):
+{{- if len $op.Params }}
 {{- range $name, $param := $op.Params }}
 {{- $paramType := parameterType $type $name $param }}
     {{ $name }}: {{ if $param.IsArray -}}
@@ -85,6 +86,9 @@ Union[list[{{ $paramType }}], "np.ndarray"]
 {{ $paramType }}
 {{- end }}
 {{- end }}
+{{- else }}
+    pass
+{{- end }}
 
 
 class {{ $type }}(