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: db_adapter.rs
    path of file: ./repos/mybatis/mybatis-core/src/db
    
    the code of the file until where you have to start completion: #![allow(unreachable_patterns)]

use std::any::Any;
use std::fmt::{Debug, Formatter};
use std::str::FromStr;
use std::time::{Duration, SystemTime};

use serde::de::DeserializeOwned;
use serde::{Deserialize, Serialize};
use sqlx_core::acquire::Acquire;
use sqlx_core::arguments::{Arguments, IntoArguments};
use sqlx_core::connection::{ConnectOptions, Connection};
use sqlx_core::database::Database;
use sqlx_core::encode::Encode;
use sqlx_core::executor::Executor
    
    pub fn from_sqlite(conn_opt: &SqliteConnectOptions) -> Result<Self> {
        let mut conn_opt = conn_opt.clone();
        conn_opt.log_slow_statements(log::LevelFilter::Off, Duration::from_secs(0));
        conn_opt.log_statements(log::LevelFilter::Off);
        return Ok(Self {
            driver_type: DriverType::Sqlite,
            #[cfg(feature = "mysql")]
            mysql: None,
            #[cfg(feature = "postgres")]
            postgres: None,
            #[cfg(feature = "sqlite")]
            sqlite: Some(conn_opt),
            #[cfg(feature = "mssql")]
            mssql: None,
        });
    }