Refine operator type hints in scip.pyi

Replace Incomplete with object for several ExprLike operator stubs (__radd__, __sub__, __rsub__, __rmul__, __rtruediv__, __neg__) to relax/standardize return and operand typing. Also add missing __rtruediv__ stubs to Expr and GenExpr. These changes improve the type stubs for static type checkers and better reflect Python operator semantics.

Author: Zeroto521

src/pyscipopt/scip.pyi

@@ -331,12 +331,12 @@ class ExprLike:
         *args: Incomplete,
         **kwargs: Incomplete,
     ) -> Incomplete: ...
-    def __radd__(self, other: Incomplete, /) -> Incomplete: ...
-    def __sub__(self, other: Incomplete, /) -> Incomplete: ...
-    def __rsub__(self, other: Incomplete, /) -> Incomplete: ...
-    def __rmul__(self, other: Incomplete, /) -> Incomplete: ...
-    def __rtruediv__(self, other: Incomplete, /) -> Incomplete: ...
-    def __neg__(self) -> Incomplete: ...
+    def __radd__(self, other: object, /) -> object: ...
+    def __sub__(self, other: object, /) -> object: ...
+    def __rsub__(self, other: object, /) -> object: ...
+    def __rmul__(self, other: object, /) -> object: ...
+    def __rtruediv__(self, other: object, /) -> object: ...
+    def __neg__(self) -> object: ...
     def __abs__(self) -> GenExpr: ...
     def exp(self) -> GenExpr: ...
     def log(self) -> GenExpr: ...
@@ -364,6 +364,7 @@ class Expr(ExprLike):
     def __pow__(self, other: Incomplete, modulo: Incomplete = ..., /) -> Incomplete: ...
     def __rpow__(self, other: Incomplete, /) -> Incomplete: ...
     def __truediv__(self, other: Incomplete, /) -> Incomplete: ...
+    def __rtruediv__(self, other: object, /) -> object: ...
 
 @disjoint_base
 class ExprCons:
@@ -400,6 +401,7 @@ class GenExpr(ExprLike):
     def __pow__(self, other: Incomplete, modulo: Incomplete = ..., /) -> Incomplete: ...
     def __rpow__(self, other: Incomplete, /) -> Incomplete: ...
     def __truediv__(self, other: Incomplete, /) -> Incomplete: ...
+    def __rtruediv__(self, other: object, /) -> object: ...
 
 @disjoint_base
 class Heur: