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: success.rs
    path of file: ./repos/neo4rs/lib/src/messages
    
    the code of the file until where you have to start completion: use crate::types::{serde::DeError, BoltMap};
use ::serde::Deserialize;
use neo4rs_macros::BoltStruct;

#[derive(Debug, PartialEq, Clone, BoltStruct)]
#[signature(0xB1, 0x70)]
pub struct Success {
    metadata: BoltMap,
}

impl Success {
    pub fn get<'this, T>(&'this self, key: &str) -> Result<T, DeError>
    where
        T: Deserialize<'this>,
    {
        self.metadata.get::<T>(key)
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::{types::BoltWireFormat, version:
    
    fn should_deserialize_success() {
        let mut data = Bytes::from_static(&[
            0xB1, 0x70, 0xA2, 0x86, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x8B, 0x4E, 0x65, 0x6F,
            0x34, 0x6A, 0x2F, 0x34, 0x2E, 0x31, 0x2E, 0x34, 0x8D, 0x63, 0x6F, 0x6E, 0x6E, 0x65,
            0x63, 0x74, 0x69, 0x6F, 0x6E, 0x5F, 0x69, 0x64, 0x87, 0x62, 0x6F, 0x6C, 0x74, 0x2D,
            0x33, 0x31,
        ]);

        let success: Success = Success::parse(Version::V4_1, &mut data).unwrap();

        assert_eq!(success.get::<String>("server").unwrap(), "Neo4j/4.1.4");
        assert_eq!(success.get::<String>("connection_id").unwrap(), "bolt-31");
    }