babel-generator is a core Babel package that takes an Abstract Syntax Tree (AST) as input and transforms it back into JavaScript code. It's responsible for the process of code generation, ensuring that the generated code is syntactically correct and adheres to specified formatting options. Used internally by Babel, babel-generator provides options for controlling whitespace, indentation, and source map generation, making it a crucial component in the compilation pipeline. You can use it directly for programmatic code generation tasks.