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: connection.rs
    path of file: ./repos/libsql/libsql/src/replication
    
    the code of the file until where you have to start completion: // TODO(lucio): Move this to `remote/mod.rs`

use std::str::FromStr;
use std::sync::Arc;

use libsql_replication::rpc::proxy::{
    describe_result, query_result::RowResult, DescribeResult, ExecuteResults, ResultRows,
    State as RemoteState,
};
use parking_lot::Mutex;

use crate::parser;
use crate::parser::StmtKind;
use crate::rows::{RowInner, RowsInner};
use crate::statement::Stmt;
use crate::transaction::Tx;
use crate::{
    params::Params, replication::Writer, Error, Result, Statement, Transaction,
    TransactionBehavior, ValueType,
};
use crate::{Column, Row, Rows, Value};

use crate::connection::Conn;
use crate::local::impls::LibsqlConnection;

#[derive(Clone)]
pub struct RemoteConnection {
    pub(self) local: LibsqlConnection,
    writer: Option<Writer>,
    inner: Arc<Mutex<Inner>>,
}

#[derive(Default, Debug)]
struct Inner {
    state: State,
    changes: u64,
    last_insert_rowid: i64,
}

#[derive(Debug, Default, PartialEq, Eq, Clone, Copy)]
enum State {
    #[default]
    Init,
    Invalid,
    Txn,
    TxnReadOnly,
}

impl State {
 
    
    pub fn step(&self, kind: StmtKind) -> State {
        use State;

        tracing::trace!("parser step: {:?} to {:?}", self, kind);

        match (*self, kind) {
            (State::TxnReadOnly, StmtKind::TxnBegin)
            | (State::Txn, StmtKind::TxnBegin)
            | (State::Init, StmtKind::TxnEnd) => State::Invalid,

            (State::TxnReadOnly, StmtKind::TxnEnd) | (State::Txn, StmtKind::TxnEnd) => State::Init,

            // Savepoint only makes sense within a transaction and doesn't change the transaction kind
            (State::TxnReadOnly, StmtKind::Savepoint) => State::TxnReadOnly,
            (State::Txn, StmtKind::Savepoint) => State::Txn,
            (_, StmtKind::Savepoint) => State::Invalid,
            // Releasing a savepoint only makes sense inside a transaction and it doesn't change its state
            (State::TxnReadOnly, StmtKind::Release) => State::TxnReadOnly,
            (State::Txn, StmtKind::Release) => State::Txn,
            (_, StmtKind::Release) => State::Invalid,

            (
                state,
                StmtKind::Other
                | StmtKind::Write
                | StmtKind::Read
                | StmtKind::Attach
                | StmtKind::Detach,
            ) => state,
            (State::Invalid, _) => State::Invalid,

            (State::Init, StmtKind::TxnBegin) => State::Txn,
            (State::Init, StmtKind::TxnBeginReadOnly) => State::TxnReadOnly,

            (State::Txn, StmtKind::TxnBeginReadOnly)
            | (State::TxnReadOnly, StmtKind::TxnBeginReadOnly) => State::Invalid,
        }
    }