You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: msg.rs
    path of file: ./repos/MNGA/logic/service/src
    
    the code of the file until where you have to start completion: use protos::{
    DataModel::{ShortMessage, ShortMessagePost, UserName},
    Service::{
        ShortMessageDetailsRequest, ShortMessageDetailsResponse, ShortMessageList
    
    async fn test_reply_short_msg() -> ServiceResult<()> {
        let action = ShortMessagePostAction {
            operation: ShortMessagePostAction_Operation::REPLY,
            mid: "3549006".to_owned(),
            ..Default::default()
        };

        let response = post_short_msg(ShortMessagePostRequest {
            action: Some(action).into(),
            content: "Test Reply Content".to_owned(),
            subject: "Test Reply Short Message from Logic Test".to_owned(),
            ..Default::default()
        })
        .await?;

        println!("response: {:?}", response);

        Ok(())
    }