--list-secret-keys
-K
    List all keys from the secret keyrings, or just the ones given on the command line. A # after the letters sec means that the secret key is not usable (for example, if it was created via --export-secret-subkeys).

            _ _              ___   ___     __               _  _ __  
           | (_) __ _ _ __  / _ \ / _ \   / /_   _____ _ __| || |\ \ 
           | | |/ _` | '_ \| | | | | | | | |\ \ / / _ \ '__| || |_| |
           | | | (_| | |_) | |_| | |_| | | | \ V /  __/ |  |__   _| |
           |_|_|\__,_| .__/ \___/ \___/  | |  \_/ \___|_|     |_| | |
                     |_|                  \_\                    /_/