Macro impl_executable_builder_owned 

macro_rules! impl_executable_builder_owned {
    (
        $builder:ty,
        $service:ty,
        $request:ty,
        $response:ty,
        $method:ident
    ) => { ... };
}

为使用值类型参数的Builder实现ExecutableBuilder trait

与主宏的差异：服务方法接受值类型而不是引用类型的Request