export declare const DEFAULT_NAMESPACES: Record<string, string | null>;
/**
 * Records an array of overlapping objects that is shifted and unshifted as the parser traverses.
 */
export default function createNamespaceContext(additionalNsMapping: Record<string, string>): {
    push: (x: Record<string, string>) => number;
    pop: () => Record<string, string | null> | undefined;
    location: (prefix: string | undefined) => string | null | undefined;
};