/**
 * @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.
 */
/**
 * Defines the image format for images generated by Imagen.
 *
 * Use this class to specify the desired format (JPEG or PNG) and compression quality
 * for images generated by Imagen. This is typically included as part of
 * {@link ImagenModelParams}.
 *
 * @example
 * ```javascript
 * const imagenModelParams = {
 *   // ... other ImagenModelParams
 *   imageFormat: ImagenImageFormat.jpeg(75) // JPEG with a compression level of 75.
 * }
 * ```
 *
 * @deprecated All Imagen models are deprecated and will shut down as
 * early as June 2026. As a replacement, you can
 * {@link https://firebase.google.com/docs/ai-logic/imagen-models-migration |
 * migrate your apps to use Gemini Image models (the "Nano Banana" models)}.
 *
 * @public
 */
export declare class ImagenImageFormat {
    /**
     * The MIME type.
     */
    mimeType: string;
    /**
     * The level of compression (a number between 0 and 100).
     */
    compressionQuality?: number;
    private constructor();
    /**
     * Creates an {@link ImagenImageFormat} for a JPEG image.
     *
     * @param compressionQuality - The level of compression (a number between 0 and 100).
     * @returns An {@link ImagenImageFormat} object for a JPEG image.
     *
     * @public
     */
    static jpeg(compressionQuality?: number): ImagenImageFormat;
    /**
     * Creates an {@link ImagenImageFormat} for a PNG image.
     *
     * @returns An {@link ImagenImageFormat} object for a PNG image.
     *
     * @public
     */
    static png(): ImagenImageFormat;
}