import { ImageFieldImage } from "../types/value/image.cjs";
import { BuildPixelDensitySrcSetParams } from "imgix-url-builder";

//#region src/helpers/asImagePixelDensitySrcSet.d.ts
/** Configuration for `asImagePixelDensitySrcSet()`. */
type AsImagePixelDensitySrcSetConfig = Omit<BuildPixelDensitySrcSetParams, "pixelDensities"> & Partial<Pick<BuildPixelDensitySrcSetParams, "pixelDensities">>;
/** The return type of `asImagePixelDensitySrcSet()`. */
type AsImagePixelDensitySrcSetReturnType<Field extends ImageFieldImage | null | undefined> = Field extends ImageFieldImage<"filled"> ? {
  /** The image field's URL with imgix URL parameters (if given). */src: string;
  /**
   * A pixel-density-based `srcset` attribute value for the image field with imgix URL
   * parameters (if given).
   */
  srcset: string;
} : null;
/**
 * Creates a pixel-density-based `srcset` from an image field with optional image transformations
 * via imgix URL parameters.
 *
 * If a `pixelDensities` parameter is not given, the following pixel densities will be used by
 * default: 1, 2, 3.
 *
 * @example
 * 	;```ts
 * 	const srcset = asImagePixelDensitySrcSet(document.data.photo, {
 * 		pixelDensities: [1, 2],
 * 		sat: -100,
 * 	})
 * 	// => {
 * 	//   src: "https://images.prismic.io/repo/image.png?sat=-100",
 * 	//   srcset: "https://images.prismic.io/repo/image.png?sat=-100&dpr=1 1x, " +
 * 	//           "https://images.prismic.io/repo/image.png?sat=-100&dpr=2 2x"
 * 	// }
 * 	```
 *
 * @param field - An image field (or one of its responsive views) from which to get an image URL.
 * @param config - An object of imgix URL API parameters. The `pixelDensities` parameter defines the
 *   resulting `srcset` pixel densities.
 * @returns A `srcset` attribute value for the image field with imgix URL parameters, or `null` if
 *   the field is empty.
 * @see Learn how to optimize images with imgix: {@link https://prismic.io/docs/fields/image}
 * @see imgix URL parameters reference: {@link https://docs.imgix.com/apis/rendering}
 */
declare const asImagePixelDensitySrcSet: <Field extends ImageFieldImage | null | undefined>(field: Field, config?: AsImagePixelDensitySrcSetConfig) => AsImagePixelDensitySrcSetReturnType<Field>;
//#endregion
export { asImagePixelDensitySrcSet };
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