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