import { ProgramNode } from "./ast";
import { Either } from "monet";
import { NgExpressionParserError } from "../core";
export declare const $parseOptions: {
    literals: any;
    isIdentifierStart: boolean | undefined;
    isIdentifierContinue: boolean | undefined;
};
export declare function parseExpression(expression: string): Either<NgExpressionParserError, ProgramNode>;