AutocompletableNames

type AutocompletableNames<Route extends keyof SlashOptionRegistry> =
    Route extends unknown
        ? {
              [Name in keyof Row<Route>]: Row<Route>[Name] extends {
                  autocomplete: true;
              }
                  ? Name
                  : never;
          }[keyof Row<Route>]
        : never;

type AutocompletableNames<Route extends keyof SlashOptionRegistry> =
    Route extends unknown
        ? {
              [Name in keyof Row<Route>]: Row<Route>[Name] extends {
                  autocomplete: true;
              }
                  ? Name
                  : never;
          }[keyof Row<Route>]
        : never;