@babel/plugin-transform-private-methods converts ES2022 private methods and accessors into compatible JavaScript. Private methods, denoted by a # prefix, offer encapsulation and prevent direct access from outside the class. This Babel plugin ensures that code utilizing this modern syntax can run in environments lacking native support, maintaining functionality by transpiling to equivalent, yet compatible, constructs. It handles both private methods and getters/setters, ensuring wider browser and Node.js compatibility.