Initializes the :class:`Field` items in the `Sequence` with
        the *values* in the *content* list.

        :param list content: a list contains the :class:`Field` values for each
            item in the `Sequence`.

def initialize_fields(self, content):
        """ Initializes the :class:`Field` items in the `Sequence` with
        the *values* in the *content* list.

        :param list content: a list contains the :class:`Field` values for each
            item in the `Sequence`.
        """
        for name, pair in enumerate(zip(self, content)):
            item, value = pair
            # Container or Pointer
            if is_mixin(item):
                item.initialize_fields(value)
            # Fields
            elif is_field(item):
                item.value = value
            else:
                raise MemberTypeError(self, item, name)