code: def extern_store_tuple(self, context_handle, vals_ptr, vals_len):
      
      c = self._ffi.from_handle(context_handle)
      return c.to_value(tuple(c.from_value(val[0]) for val in self._ffi.unpack(vals_ptr, vals_len)))
docs: Given storage and an array of Handles, return a new Handle to represent the list.