code: def pixel(self, func:PixelFunc, *args, **kwargs)->'ImagePoints':
          "Equivalent to `self = func_flow(self)`."
          self = func(self, *args, **kwargs)
          self.transformed=True
          return self pixel(self, func:PixelFunc, *args, **kwargs)->'ImagePoints':
          "Equivalent to `self = func_flow(self)`."
          self = func(self, *args, **kwargs)
          self.transformed=True
          return self
docs: Equivalent to `self = func_flow(self)`.