code: def move_to(*args)
        arg = args.shift
        case arg
          when CaTissue::Container then arg.add(self, *args)
          when CaTissue::Location then
            loc = arg
            loc.container.add(self, loc.coordinate)
          when Hash then
            dest = arg[:in]
            if at.nil? then raise ArgumentError.new("#{self} move_to container :in option not found") end
            coord = arg[:at]
            dest = CaTissue::Location.new(dest, coord) if coord
            move_to(dest)
          else raise ArgumentError.new("Target location is neither a Container nor a Location: #{arg.class.qp}")
        end
        position
      end
docs: Moves this storable from its current {Position}, if any, to the location given by the argument.
  
   @param [CaTissue::Container, (CaTissue::Container, Integer, Integer), CaTissue::Location, Hash] args the target container, location, or options
   @option args [CaTissue::Container] :in the target container
   @option args [CaRuby::Coordinate, (Integer, Integer)] :at the target coordinates
   @return [Position] the new position
   @see Container#add