import { Nullable } from "@babylonjs/core/types";
import { AnimationGroup } from "@babylonjs/core/Animations/animationGroup";
import { TransformNode } from "@babylonjs/core/Meshes/transformNode";
import { IScene, INode, IAnimation } from "../glTFLoaderInterfaces";
import { IGLTFLoaderExtension } from "../glTFLoaderExtension";
import { GLTFLoader } from "../glTFLoader";
/**
 * [Specification](https://github.com/najadojo/glTF/tree/MSFT_audio_emitter/extensions/2.0/Vendor/MSFT_audio_emitter)
 */
export declare class MSFT_audio_emitter implements IGLTFLoaderExtension {
    /** The name of this extension. */
    readonly name = "MSFT_audio_emitter";
    /** Defines whether this extension is enabled. */
    enabled: boolean;
    private _loader;
    private _clips;
    private _emitters;
    /** @hidden */
    constructor(loader: GLTFLoader);
    /** @hidden */
    dispose(): void;
    /** @hidden */
    onLoading(): void;
    /** @hidden */
    loadSceneAsync(context: string, scene: IScene): Nullable<Promise<void>>;
    /** @hidden */
    loadNodeAsync(context: string, node: INode, assign: (babylonTransformNode: TransformNode) => void): Nullable<Promise<TransformNode>>;
    /** @hidden */
    loadAnimationAsync(context: string, animation: IAnimation): Nullable<Promise<AnimationGroup>>;
    private _loadClipAsync;
    private _loadEmitterAsync;
    private _getEventAction;
    private _loadAnimationEventAsync;
}