/**
 * Minimal type declaration for css-tree v2.
 * css-tree v2.x does not ship bundled TypeScript types.
 * These declarations cover only the subset of the API used by the sanitizer.
 */
declare module "css-tree" {
  interface CssNode {
    type: string;
    [key: string]: unknown;
  }

  interface List {
    remove(item: ListItem): void;
  }

  interface ListItem {
    data: CssNode;
  }

  function parse(
    css: string,
    options?: {
      parseValue?: boolean;
      onParseError?: (error: SyntaxError) => void;
    }
  ): CssNode;

  function walk(
    ast: CssNode,
    visitor:
      | ((node: CssNode, item: ListItem | null, list: List | null) => void)
      | {
          enter?: (
            node: CssNode,
            item: ListItem | null,
            list: List | null
          ) => void;
          leave?: (
            node: CssNode,
            item: ListItem | null,
            list: List | null
          ) => void;
        }
  ): void;

  function generate(ast: CssNode): string;
}