def __init__(self, pubkey: str) -> None:
        """
        Create instance of libnacl ed25519 sign PublicKey from a base58 public key

        :param pubkey: Base58 public key
        """
        key = Base58Encoder.decode(pubkey)
        super().__init__(key)
def __init__ ( self , pubkey : str ) -> None : key = Base58Encoder . decode ( pubkey ) super ( ) . __init__ ( key )
Create instance of libnacl ed25519 sign PublicKey from a base58 public key

        :param pubkey: Base58 public key