pkg database/sql, const LevelDefault IsolationLevel
pkg database/sql, const LevelLinearizable = 7
pkg database/sql, const LevelLinearizable IsolationLevel
pkg database/sql, const LevelReadCommitted = 2
pkg database/sql, const LevelReadCommitted IsolationLevel
pkg database/sql, const LevelReadUncommitted = 1
pkg database/sql, const LevelReadUncommitted IsolationLevel
pkg database/sql, const LevelRepeatableRead = 4

func ctxDriverBegin(ctx context.Context, opts *TxOptions, ci driver.Conn) (driver.Tx, error) {
	if ciCtx, is := ci.(driver.ConnBeginTx); is {
		dopts := driver.TxOptions{}
		if opts != nil {
			dopts.Isolation = driver.IsolationLevel(opts.Isolation)
			dopts.ReadOnly = opts.ReadOnly
		}
		return ciCtx.BeginTx(ctx, dopts)
	}

	if opts != nil {
		// Check the transaction level. If the transaction level is non-default

	PrepareContext(ctx context.Context, query string) (Stmt, error)
}

// IsolationLevel is the transaction isolation level stored in [TxOptions].
//
// This type should be considered identical to [database/sql.IsolationLevel] along
// with any values defined on it.
type IsolationLevel int

// TxOptions holds the transaction options.
//

	// so unkeyed struct literals are a vet error. Thus, we don't
	// want to allow sql.NamedArg{name, value}.
	return NamedArg{Name: name, Value: value}
}

// IsolationLevel is the transaction isolation level used in [TxOptions].
type IsolationLevel int

// Various isolation levels that drivers may support in [DB.BeginTx].
// If a driver does not support a given isolation level an error may be returned.
//

pkg crypto/rsa, method (*PrivateKey) Size() int
pkg crypto/rsa, method (*PublicKey) Size() int
pkg crypto/tls, method (*ConnectionState) ExportKeyingMaterial(string, []uint8, int) ([]uint8, error)
pkg database/sql, method (IsolationLevel) String() string
pkg database/sql, type DBStats struct, Idle int
pkg database/sql, type DBStats struct, InUse int
pkg database/sql, type DBStats struct, MaxIdleClosed int64

		{"(*Tx).QueryRow", Method, 0},
		{"(*Tx).QueryRowContext", Method, 8},
		{"(*Tx).Rollback", Method, 0},
		{"(*Tx).Stmt", Method, 0},
		{"(*Tx).StmtContext", Method, 8},
		{"(IsolationLevel).String", Method, 11},
		{"(Null).Value", Method, 22},
		{"(NullBool).Value", Method, 0},
		{"(NullByte).Value", Method, 17},
		{"(NullFloat64).Value", Method, 0},
		{"(NullInt16).Value", Method, 17},