Add the new Python constructors to the pyi files

This change makes the type checkers aware that these constructors
exist, so that the checkers don't warn about code that calls them.

Wrapping/Python/vtkmodules/generate_pyi.py

@@ -35,7 +35,7 @@ To generate pyi files for your own modules in your own package:
 
 """
 
-from vtkmodules.vtkCommonCore import vtkObject, vtkSOADataArrayTemplate
+from vtkmodules.vtkCommonCore import vtkObjectBase, vtkSOADataArrayTemplate
 from keyword import iskeyword
 
 import sys
@@ -63,7 +63,7 @@ ismethod = inspect.isroutine
 isclass = inspect.isclass
 
 # VTK methods have a special type
-vtkmethod = type(vtkObject.IsA)
+vtkmethod = type(vtkObjectBase.IsA)
 template = type(vtkSOADataArrayTemplate)
 
 def isvtkmethod(m):
@@ -429,10 +429,9 @@ def class_pyi(c):
     # do the __init__ methods
     constructors = get_constructors(c)
     if len(constructors) == 0:
-        #if hasattr(c, "__init__") and not issubclass(c, int):
-        #    out += "    def __init__() -> None: ...\n"
-        #    count += 1
-        pass
+        if hasattr(c, "__init__") and issubclass(c, vtkObjectBase):
+            out += "    def __init__(self, **properties:Any) -> None: ...\n"
+            count += 1
     else:
         count += 1
         if len(constructors) == 1: