code: def concatenate(self, other, *args):
          
          # avoid a circular import
          from . import objects
          result = objects.concatenate(self, other, *args)
          return result
docs: Concatenate two or more ColorVisuals objects into a single object.
  
          Parameters
          -----------
          other : ColorVisuals
            Object to append
          *args: ColorVisuals objects
  
          Returns
          -----------
          result: ColorVisuals object containing information from current
                  object and others in the order it was passed.