async def METHOD_NAME(self) -> bytes:
    """|coro|
    Retrieves the content of this asset as a :class:`bytes` object.
    Raises
    ------
    DiscordException
        There was no internal connection state.
    HTTPException
        Downloading the asset failed.
    NotFound
        The asset was deleted.
    ValueError
        The PartialEmoji is not a custom emoji.
    Returns
    -------
    :class:`bytes`
        The content of the asset.
    """
    if self.is_unicode_emoji():
        raise ValueError('PartialEmoji is not a custom emoji')
    return await super().METHOD_NAME()