Incorrect error message in cv2.rectangle

`cv2.rectangle(img,(x,y),(x+w,y+h))` gives ```TypeError: function takes exactly 4 arguments (2 given)``` when actually the number of arguments given is 3
# Steps to reproduce
```
img = cv2.imread("path_to_img")
x,y,w,h = 10,10,10,10
cv2.rectangle(img,(x,y),(x+w,y+h))
cv2.imshow("Frame",img)
```
# Expected Result
```TypeError: function takes exactly 4 arguments (3 given)``` 