How to use the pypylon.pylon.GrabStrategy_LatestImageOnly function in pypylon

    def _run_continuous_shot(self, grab_strategy=pylon.GrabStrategy_LatestImageOnly,
                                        window_size=None, image_folder='.'):
        self._camera.StopGrabbing()

        # converting to opencv bgr format
        converter = pylon.ImageFormatConverter()
        converter.OutputPixelFormat = pylon.PixelType_BGR8packed
        converter.OutputBitAlignment = pylon.OutputBitAlignment_MsbAligned

        if(not self._impro_own_window):
            cv2.namedWindow('camera_image', cv2.WINDOW_NORMAL | cv2.WINDOW_GUI_NORMAL)
            if(window_size is not None):
                cv2.resizeWindow('camera_image', window_size[0], window_size[1])

        self._camera.StartGrabbing(grab_strategy)
        try:
            while(self._camera.IsGrabbing()):

try:
                        setattr(self._cam, k, v)
                        self.debug('Set {} to {}'.format(k, v))
                    except ValueError as e:
                        self.warning('Invalid Property value. k="{}",v={}. e={}'.format(k, v, e))
                    except KeyError:
                        self.warning('Invalid Camera Property "{}"'.format(k))
                    except RuntimeError as e:
                        self.warning('RunTimeError: {}. k={},v={}'.format(e, k, v))
                    except IOError as e:
                        self.warning('IOError: {}, k={}, v={}'.format(e, k, v))
                    except genicam.AccessException as e:
                        self.warning('Access Exception {}'.format(e))

            self.pixel_depth = self._cam.PixelDynamicRangeMax.Value
            self._cam.StartGrabbing(pylon.GrabStrategy_LatestImageOnly)