Add extended attribute to FitParameter

src/zfitwrapper/FitParameter.py

@@ -29,6 +29,7 @@ class Fitparameter:
         latex_name: Optional[str] = None,
         unit: str = "",
         shuffle: bool = True,
+        extended: bool = False,
     ) -> None:
         self.name = name
         self.value = value
@@ -39,6 +40,7 @@ class Fitparameter:
         self.latex_name = name if latex_name is None else latex_name
         self.unit = unit
         self.shuffle = shuffle
+        self.extended = extended
 
     @property
     def parameter_info_dict(self) -> dict: