/**
 * Abstract base class for manifest wrappers.
 * Provides common functionality for reading, writing, and tracking changes to manifest files.
 *
 * @template T - The manifest type this wrapper handles
 */
export declare abstract class BaseManifest<T extends Record<string, unknown>> {
    protected _data: T;
    protected _filePath?: string;
    protected _isDirty: boolean;
    protected constructor(data: T, filePath?: string);
    /**
     * Returns the raw manifest data.
     */
    get data(): Readonly<T>;
    /**
     * Returns the file path if the manifest was loaded from a file.
     */
    get filePath(): string | undefined;
    /**
     * Indicates whether the manifest has unsaved changes.
     */
    get isDirty(): boolean;
    /**
     * Marks the manifest as having unsaved changes.
     */
    protected markDirty(): void;
    /**
     * Saves the manifest to the specified file path or the original file path.
     * @param filePath - Optional path to save to. If not provided, uses the original file path.
     * @throws Error if no file path is available.
     */
    save(filePath?: string): Promise<void>;
    /**
     * Validates the manifest against its schema.
     * @returns Array of validation error messages, empty if valid.
     */
    abstract validate(): Promise<string[]>;
    /**
     * Converts the manifest to a JSON string.
     */
    abstract toJSON(): string;
    /**
     * Creates a deep clone of this manifest wrapper.
     */
    abstract clone(): BaseManifest<T>;
    /**
     * Reads a JSON file and returns the parsed object.
     * @param filePath - Path to the JSON file
     */
    protected static readJsonFile<U>(filePath: string): Promise<U>;
    /**
     * Reads a JSON file synchronously and returns the parsed object.
     * @param filePath - Path to the JSON file
     */
    protected static readJsonFileSync<U>(filePath: string): U;
}