code: def is_fully_within_image(self, image):
          
          return not self.is_out_of_image(image, fully=True, partly=True)
docs: Estimate whether the polygon is fully inside the image area.
  
          Parameters
          ----------
          image : (H,W,...) ndarray or tuple of int
              Image dimensions to use.
              If an ndarray, its shape will be used.
              If a tuple, it is assumed to represent the image shape and must contain at least two integers.
  
          Returns
          -------
          bool
              True if the polygon is fully inside the image area.
              False otherwise.