Function safecoin_clap_utils::keypair::signer_from_path

pub fn signer_from_path(
    matches: &ArgMatches<'_>, 
    path: &str, 
    keypair_name: &str, 
    wallet_manager: &mut Option<Arc<RemoteWalletManager>>
) -> Result<Box<dyn Signer>, Box<dyn Error>>