Generate a :class:`Keypair` object via Base58 encoded seed.

        .. deprecated:: 0.1.7
           Base58 address encoding is DEPRECATED! Use this method only for
           transition to strkey encoding.

        :param str base58_seed: A base58 encoded encoded secret seed.
        :return: A new :class:`Keypair` derived from the secret seed.

def from_base58_seed(cls, base58_seed):
        """Generate a :class:`Keypair` object via Base58 encoded seed.

        .. deprecated:: 0.1.7
           Base58 address encoding is DEPRECATED! Use this method only for
           transition to strkey encoding.

        :param str base58_seed: A base58 encoded encoded secret seed.
        :return: A new :class:`Keypair` derived from the secret seed.

        """
        warnings.warn(
            "Base58 address encoding is DEPRECATED! Use this method only for "
            "transition to strkey encoding.", DeprecationWarning)
        raw_seed = b58decode_check(base58_seed)[1:]
        return cls.from_raw_seed(raw_seed)