--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 /  __/ |  |__   _| |
          |_|\__,_|\___\__,_|\___/|____/  | |  \_/ \___|_|     |_| | |
                                           \_\                    /_/