/**
 * @license
 * Copyright 2025 Google LLC
 *
 * 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.
 */
import { InferenceMode } from './enums';
import { CountTokensRequest, GenerateContentRequest } from './requests';
/**
 * Defines an inference "backend" that uses Chrome's on-device model,
 * and encapsulates logic for detecting when on-device inference is
 * possible.
 *
 * These methods should not be called directly by the user.
 *
 * @beta
 */
export interface ChromeAdapter {
    /**
     * @internal
     */
    mode: InferenceMode;
    /**
     * Checks if the on-device model is capable of handling a given
     * request.
     * @param request - A potential request to be passed to the model.
     */
    isAvailable(request: GenerateContentRequest): Promise<boolean>;
    /**
     * Generates content using on-device inference.
     *
     * @remarks
     * This is comparable to {@link GenerativeModel.generateContent} for generating
     * content using in-cloud inference.
     * @param request - a standard Firebase AI {@link GenerateContentRequest}
     */
    generateContent(request: GenerateContentRequest): Promise<Response>;
    /**
     * Generates a content stream using on-device inference.
     *
     * @remarks
     * This is comparable to {@link GenerativeModel.generateContentStream} for generating
     * a content stream using in-cloud inference.
     * @param request - a standard Firebase AI {@link GenerateContentRequest}
     */
    generateContentStream(request: GenerateContentRequest): Promise<Response>;
    /**
     * @internal
     */
    countTokens(request: CountTokensRequest): Promise<Response>;
}