import { Token } from './tokens';
/**
 * Output of the parser.
 */
export interface ParserOutput {
    /**
     * All the tokens that are not flags or options, in order.
     */
    ordered: Token[];
    /**
     * The parsed flags.
     */
    flags: Set<string>;
    /**
     * The parsed options mapped to their value.
     */
    options: Map<string, string[]>;
}
/**
 * Creates an empty parser output.
 * @returns An empty output.
 */
export declare function emptyOutput(): ParserOutput;
/**
 * Merges multiple outputs into one.
 * Flags and options that appear later will be preferred if there are duplicates.
 * @param ps - The outputs to merge.
 * @returns The merged output.
 */
export declare function mergeOutputs(...ps: ParserOutput[]): ParserOutput;
/**
 * Converts an output to JSON, where the flags and options are turned into arrays of entries.
 * You can recover the output with 'outputFromJSON'.
 * @param p - The output.
 * @returns The JSON.
 */
export declare function outputToJSON(p: ParserOutput): Record<string, unknown>;
/**
 * Converts JSON to a parser output.
 * @param obj - A valid JSON input, following the schema from 'outputToJSON'.
 * @returns The output.
 */
export declare function outputFromJSON(obj: Record<string, unknown>): ParserOutput;