import type { types } from 'recast';
import type { StatementKind } from 'ast-types/lib/gen/kinds';
import type { namedTypes } from 'ast-types';
export declare const globalIdentifier: namedTypes.Identifier;
export type DataNode = namedTypes.ThisExpression | namedTypes.Identifier;
export declare const jsVariablePolyfill: (ast: types.namedTypes.File, dataNode: DataNode) => StatementKind[] | undefined;