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: status.rs
    path of file: ./repos/readyset/readyset-client/src
    
    the code of the file until where you have to start completion: //! System status information that can sent to a noria-client.
//!
//! When introducing new fields to the [`ReadySetControllerStatus`] type, be sure to
//! update support for converting the object to strings:
//!   * `ReadySetControllerStatus::try_from(_: Vec<(String, String)>)`
//!   * `Vec<(String, String)>::from(_: ReadySetControllerStatus)`
//!
//! These two conversions are used to convert the [`ReadySetControllerStatus`] structs to a format
//! that can be passed to various SQL clients.
use std::fmt::{self, Display};

use replication_offset::ReplicationOffset;
use serde::{Deserialize, Serialize};

// Consts for variable names.

const S
    
    fn from(status: ReadySetControllerStatus) -> Vec<(String, String)> {
        let mut res = vec![(
            SNAPSHOT_STATUS_VARIABLE.to_string(),
            status.snapshot_status.to_string(),
        )];

        if let Some(replication_offset) = status.max_replication_offset {
            res.push((
                MAX_REPLICATION_OFFSET.to_string(),
                replication_offset.to_string(),
            ))
        }

        if let Some(replication_offset) = status.min_replication_offset {
            res.push((
                MIN_REPLICATION_OFFSET.to_string(),
                replication_offset.to_string(),
            ))
        }

        res
    }