/**
 * @license
 * Copyright 2021 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/// <amd-module name="@tensorflow/tfjs-tflite/dist/types/bert_qa" />
import { BaseTaskLibrary } from './common';
/** A single answer. */
export declare interface QaAnswer {
    text: string;
    pos: Pos;
}
/** Answer position. */
export declare interface Pos {
    start: number;
    end: number;
    logit: number;
}
/** BertQuestionAnswerer class type. */
export declare interface BertQuestionAnswererClass {
    /**
     * The factory function to create an ImageClassifier instance.
     *
     * @param model The path to load the TFLite model from, or the model content
     *     in memory.
     */
    create(model: string | ArrayBuffer): Promise<BertQuestionAnswerer>;
}
/** The main BertQuestionAnswerer class instance. */
export declare class BertQuestionAnswerer extends BaseTaskLibrary {
    /** Answers question based on the context. */
    answer(context: string, question: string): QaAnswer[] | undefined;
}