auto argCatCommand = service::ModifiedArgument<CatCommand>::require("catCommand", params.arguments);
std::unique_lock resolverLock(_resolverMutex);
auto directives = std::move(params.fieldDirectives);
auto result = _pimpl->getDoesKnowCommand(service::FieldParams(service::SelectionSetParams{ params }, std::move(directives)), std::move(argCatCommand));