Function address 

pub fn address<L, C, K>(
    owner_api: &mut Owner<L, C, K>,
    g_args: &GlobalArgs,
    keychain_mask: Option<&SecretKey>,
) -> Result<(), Error>
where
    L: WalletLCProvider<'static, C, K> + 'static,
    C: NodeClient + 'static,
    K: Keychain + 'static,

Payment Proof Address