def get_base64(self):
return u(encodebytes(self.asbytes())).replace("<STR_LIT:\n>", "<STR_LIT>")<EOL>
Return a base64 string containing the public part of this key.  Nothing
secret is revealed.  This format is compatible with that used to store
public key files or recognized host keys.

:return: a base64 `string <str>` containing the public part of the key.