diff --git a/python/helpers/python-skeletons/numpy/core/multiarray.py b/python/helpers/python-skeletons/numpy/core/multiarray.py
index 0195bb121eb7..c1867a8f9439 100644
--- a/python/helpers/python-skeletons/numpy/core/multiarray.py
+++ b/python/helpers/python-skeletons/numpy/core/multiarray.py
@@ -129,6 +129,15 @@ class ndarray(object):
         """
         pass
 
+    def __neg__(self, *args, **kwargs): # real signature unknown
+        """
+            x.__neg__() <==> -x
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
     def __rmul__(self, y): # real signature unknown; restored from __doc__
         """
             x.__rmul__(y) <==> y*x
@@ -339,6 +348,16 @@ class ndarray(object):
         """
         pass
 
+    def __pos__(self, *args, **kwargs): # real signature unknown
+        """
+            x.__pos__() <==> +x
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
     def __ror__(self, y): # real signature unknown; restored from __doc__
         """
             x.__ror__(y) <==> y|x
@@ -729,6 +748,16 @@ class ndarray(object):
         """
         pass
 
+    def __invert__(self, *args, **kwargs): # real signature unknown
+        """
+            x.__invert__() <==> ~x
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
     def __ior__(self, y): # real signature unknown; restored from __doc__
         """
             x.__ior__(y) <==> x|=y