ast-types provides a robust library for working with Abstract Syntax Trees (ASTs) in JavaScript. It defines a type hierarchy for AST nodes based on the ESTree specification, offering tools for defining, traversing, and modifying ASTs. This package is essential for developers creating linters, code formatters, and other tools that need to analyze or transform JavaScript code programmatically. Its focus on type safety and extensibility makes it a valuable asset when manipulating complex code structures.