/**
 * Author: Srilal S. Siriwardhane
 * Email: SrilalS@99x.io
**/
import { FeatureExtractionPipeline } from '@huggingface/transformers';
import { AbstractEmbedderEngine } from './AbstractEmbedderEngine.js';
import { Document } from '../types/Document.js';
import { VectorDocument } from '../types/VectorDocument.js';
import { AvailableModels } from '../types/AvailableModels.js';
import { Model } from '../types/Model.js';
/**
 * EmbedderModel
 * This type is extended by the `Model` Enum to enforce the model type.
 */
type EmbedderModel = Model | 'gte-small' | 'mxbai-embed-large-v1' | 'jina-clip-v1' | 'nomic-embed-text-v1.5';
/**
 * OnBrowserEmbeddingEngine
 * This class is responsible for embedding texts and documents using the transformerJS
 * in the browser environment.
 */
export declare class OnBrowserEmbeddingEngine extends AbstractEmbedderEngine {
    embedderModel: EmbedderModel;
    availableModels: AvailableModels;
    embedder: FeatureExtractionPipeline;
    /**
     * Constructor
     * @param model EmbedderModel
     */
    constructor(model: EmbedderModel);
    static init(model: EmbedderModel): Promise<OnBrowserEmbeddingEngine>;
    createEmbedder(instance: OnBrowserEmbeddingEngine): Promise<void>;
    embedTexts(texts: string[], batchSize?: number): Promise<number[][]>;
    embedDocuments(documents: Document[], batchSize?: number): Promise<VectorDocument[]>;
    /**
     * getModel
     * This method is responsible for returning the model name.
     * @returns string
     */
    getModel(): string;
}
export {};