code: def is_scaled_full_image(self):
          
          return(self.region_full and
                 self.size_wh[0] is not None and
                 self.size_wh[1] is not None and
                 not self.size_bang and
                 self.rotation_deg == 0.0 and
                 self.quality == self.default_quality and
                 self.format == 'jpg')
docs: True if this request is for a scaled full image.
  
          To be used to determine whether this request should be used
          in the set of `sizes` specificed in the Image Information.