/**
 * Custom error classes for bargs.
 *
 * Defines the error hierarchy used throughout bargs:
 *
 * - {@link BargsError} - Base class for all bargs errors
 * - {@link HelpError} - Triggers help text display when user needs guidance
 * - {@link ValidationError} - Thrown when configuration validation fails
 *
 * @packageDocumentation
 */
/**
 * Custom error class for bargs errors.
 *
 * @group Errors
 */
export declare class BargsError extends Error {
    constructor(message: string);
}
/**
 * Error that triggers help text display. Thrown when the user needs guidance.
 *
 * @param message - Error message to show before help text
 * @param command - Command name for command-specific help, undefined for
 *   general help
 * @group Errors
 */
export declare class HelpError extends BargsError {
    readonly command?: string;
    constructor(message: string, command?: string);
}
/**
 * Error thrown when bargs config validation fails.
 *
 * @param message - Description of what's invalid
 * @param path - Dot-notation path to the invalid property (e.g.,
 *   "options.verbose.aliases[0]")
 * @group Errors
 */
export declare class ValidationError extends BargsError {
    readonly path: string;
    constructor(path: string, message: string);
}
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