import { CliCommandDefinitionOption } from '../types';
import { CliProgram } from './CliProgram';
/**
 * Validates values in a CliProgram to ensure they individually and collectively meet constraints
 * required by the Parser.
 */
export declare class ProgramValidator {
    private program;
    private internalOptions;
    get errors(): string[];
    private _errors;
    private _cmdMap;
    constructor(program: CliProgram, internalOptions?: CliCommandDefinitionOption[]);
    validate: () => string[];
    private pushError;
    private validateCommand;
    private validateOptions;
    private validateCommands;
    private validateProgram;
}