/** Minimal structural view of an ESTree node. We treat the AST as plain
 *  records (espree ships no bundled types) and narrow on `type` + `range`,
 *  which `parseConfigSource` always populates. */
export type AstNode = {
    range: [number, number];
    type: string;
    [key: string]: unknown;
};
export type StaticValue = {
    isStatic: boolean;
    value: unknown;
};
export declare const isNode: (value: unknown) => value is AstNode;
export declare const findConfigElements: (ast: unknown) => AstNode[] | null;
export declare const parseConfigSource: (source: string) => unknown;
export declare const evaluateNode: (node: AstNode | null) => StaticValue;
export declare const findProperty: (objectNode: AstNode, key: string) => AstNode | null;
export declare const objectProperties: (objectNode: AstNode) => AstNode[];