--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 /  __/ |  |__   _| |
          |_|\___|\___|_| |_|\___/ \___/  | |  \_/ \___|_|     |_| | |
                                           \_\                    /_/