/**
 * Logger utility for consistent output formatting
 */
export declare class Logger {
    private verbose;
    private spinner;
    constructor(verbose?: boolean);
    /**
     * Log a message if verbose mode is enabled
     */
    log(message: string): void;
    /**
     * Log a section header
     */
    logHeader(title: string): void;
    /**
     * Log an info message with blue color
     */
    info(message: string): void;
    /**
     * Log a success message with green color
     */
    success(message: string): void;
    /**
     * Log a warning message with yellow color
     */
    warn(message: string): void;
    /**
     * Log an error message with red color
     */
    error(message: string): void;
    /**
     * Start a spinner with a message
     */
    startSpinner(message: string): void;
    /**
     * Stop the spinner with a success message
     */
    succeedSpinner(message: string): void;
    /**
     * Stop the spinner with a warning message
     */
    warnSpinner(message: string): void;
    /**
     * Stop the spinner with an error message
     */
    failSpinner(message: string): void;
    /**
     * Log data metrics in a formatted way
     */
    logMetrics(label: string, metrics: Record<string, any>): void;
}