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: manual_time_setter_linter.go
    path of file: ./repos/erda/pkg/database/sqllint/linters
    
    the code of the file until where you have to start completion: // Copyright (c) 2021 Terminus, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compl
    
func (l *manualTimeSetterLinter) Enter(in ast.Node) (out ast.Node, skipChildren bool) {
	if l.text == "" || in.Text() != "" {
		l.text = in.Text()
	}

	getLint := func(line []byte) bool {
		return bytes.Contains(line, []byte(createdAt)) || bytes.Contains(line, []byte(l.meta.ColumnName))
	}

	switch stmt := in.(type) {
	case *ast.InsertStmt:
		for _, col := range stmt.Columns {
			if col.Name.String() == l.meta.ColumnName {
				l.err = linterror.New(l.s, l.text, fmt.Sprintf("not allowed to manual insert value into column %s", l.meta.ColumnName), getLint)
				return in, true
			}
		}
	case *ast.UpdateStmt:
		for _, col := range stmt.List {
			if col.Column.String() == l.meta.ColumnName {
				l.err = linterror.New(l.s, l.text, fmt.Sprintf("not allowed to manual insert value into column %s", l.meta.ColumnName), getLint)
				return in, true
			}
		}
	default:
		return in, true
	}

	return in, true
}