import { Environment } from './Environment';
interface IBuilderMessages {
    warnings: [string, number][];
    errors: [string, number][];
}
declare class IO {
    env: Environment;
    static warnings: [string, number][];
    static errors: [string, number][];
    constructor(env: Environment);
    log(msg: any): void;
    /**
     * Print a message to the console and stores the warning.
     */
    warn(msg: string): void;
    /**
     * Prints a message to the console and stores the error.
     */
    error(msg: string): void;
    /**
     * To be used to pass a resolved promise down a chain of promises.
     */
    success<T>(value: T, msg?: string): Promise<T>;
    /**
     * To be used to pass a rejected promise down a chain of promises.
     */
    failure(err: string | Error): Promise<any>;
    openBlock(name: string, desc: string): void;
    closeBlock(name: string): void;
    /**
     * Teamcity requires certain characters to be escaped when we use service messages. See
     * https://confluence.jetbrains.com/display/TCD10/Build+Script+Interaction+with+TeamCity#BuildScriptInteractionwithTeamCity-Escapedvalues
     */
    escapeTC(msg: string): string;
    loadMessages(): IBuilderMessages | null;
    /**
     * To be called before the process finishes so that all the error and warning messages may be
     * dumped.
     */
    dumpMessages(): void;
    /**
     * Prompts the user for the next version provided by the `currentVersion`. The current version is
     * assumed to be parsable by `semver`.
     *
     * @param currentVersion The current version of the package.
     */
    promptForNewVersion(currentVersion: string): Promise<string>;
}
export { IBuilderMessages, IO, };