def METHOD_NAME(self) -> Optional[str]:
    """
    :return str: Returns a link to the previous_page_url or None if doesn't exist.
    """
    if "meta" in self._payload and "previous_page_url" in self._payload["meta"]:
        return self._payload["meta"]["previous_page_url"]
    elif (
        "previous_page_uri" in self._payload and self._payload["previous_page_uri"]
    ):
        return self._version.domain.absolute_url(self._payload["previous_page_uri"])
    return None