import type { FileHandle, TagLibModule } from "../wasm.js";
import type { AudioProperties, FileType, OpenOptions, PropertyMap } from "../types.js";
import type { MutableTag } from "./mutable-tag.js";
import type { TypedAudioFile } from "./audio-file-interface.js";
/**
 * Base implementation with core read/property operations.
 * Extended by AudioFileImpl to add save/picture/rating/extended methods.
 *
 * @internal Not exported from the public API.
 */
export declare abstract class BaseAudioFileImpl {
    protected readonly module: TagLibModule;
    protected fileHandle: FileHandle | null;
    protected cachedAudioProperties: AudioProperties | null;
    protected readonly sourcePath?: string;
    protected originalSource?: string | Uint8Array | ArrayBuffer | File;
    protected isPartiallyLoaded: boolean;
    protected readonly partialLoadOptions?: OpenOptions;
    constructor(module: TagLibModule, fileHandle: FileHandle, sourcePath?: string, originalSource?: string | Uint8Array | ArrayBuffer | File, isPartiallyLoaded?: boolean, partialLoadOptions?: OpenOptions);
    protected get handle(): FileHandle;
    getFormat(): FileType;
    isFormat<F extends FileType>(format: F): this is TypedAudioFile<F>;
    tag(): MutableTag;
    audioProperties(): AudioProperties | undefined;
    properties(): PropertyMap;
    setProperties(properties: PropertyMap): void;
    getProperty(key: string): string | undefined;
    setProperty(key: string, value: string): void;
    isMP4(): boolean;
    getMP4Item(key: string): string | undefined;
    setMP4Item(key: string, value: string): void;
    removeMP4Item(key: string): void;
    isValid(): boolean;
    dispose(): void;
    [Symbol.dispose](): void;
}
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