code: def copy(source):
      "Copy a docstring from another source function (if present)"
  
      def do_copy(target):
          if source.__doc__:
              target.__doc__ = source.__doc__
          return target
  
      return do_copf copy(source):
      "Copy a docstring from another source function (if present)"
  
      def do_copy(target):
          if source.__doc__:
              target.__doc__ = source.__doc__
          return target
  
      return do_copy
docs: Copy a docstring from another source function (if present)