import Markugen, { MarkugenOptions, OutputLabel } from './markugen';
/**
 * Abstract base class for all generators
 */
export default abstract class Generator {
    /**
     * Instance of Markugen
     */
    readonly mark: Markugen;
    /**
     * The type of the generator
     */
    readonly type: string;
    /**
     * The generate start time for recording elapsed time
     */
    protected startTime: [number, number] | undefined;
    /**
     * Used internally to prevent multiple async calls to {@link generate}
     */
    protected isActive: boolean;
    /**
     * Constructs a new generator with the given Markugen instance and options
     * @param mark the instance of {@link Markugen}
     * @param options the common {@link MarkugenOptions}
     */
    constructor(mark: Markugen, options?: MarkugenOptions);
    /**
     * Generates the output with the initialized options
     */
    abstract generate(): string | string[] | undefined | Promise<string | string[] | undefined>;
    /**
     * Initializes generation
     */
    protected start(): void;
    /**
     * Computes the elapsed time and finishes everything
     */
    protected finish(): void;
    /**
     * Starts a console group
     */
    group(...args: any[]): void;
    /**
     * Ends a console group
     */
    groupEnd(): void;
    /**
     * Use in place of console.log so the app can handle coloring
     * and any cli options that were given
     */
    log(label: OutputLabel | string, ...args: any[]): void;
    /**
     * Use in place of console.log so the app can handle coloring
     * and any cli options that were given
     */
    warning(...args: any[]): void;
    /**
     * Outputs the given error message
     * @param e the error to log
     */
    error(e: Error): void;
}