import clc from "cli-color";
export interface LogOutput {
    write(msg: string): void;
}
declare class Logger {
    private color_;
    private messages_;
    stdout: LogOutput;
    stderr: LogOutput;
    constructor(enableColor: boolean, stdout: LogOutput, stderr: LogOutput);
    raw(msg: string, opt_color?: clc.Format): void;
    info(msg: string): void;
    warn(msg: string): void;
    error(msg: string): void;
    success(msg: string): void;
    /**
     * Log items with black bright.
     */
    items(items: string[]): void;
    /**
     * Flush out all stored messages.
     * @param success If true, flush to stdout. Otherwise to stderr.
     */
    flush(success: boolean): void;
    /**
     * Clear all stored messages.
     */
    empty(): void;
}
export default Logger;