import type { Node, GatsbyNode, NodeInput } from "gatsby";
interface IRemoteFileNodeFields {
    url: string;
    mimeType: string;
    filename: string;
    filesize?: number;
}
export interface IRemoteFileNode extends IRemoteFileNodeFields, Node {
}
export interface IRemoteFileNodeInput extends IRemoteFileNodeFields, NodeInput {
}
interface IRemoteImageNodeFields {
    width: number;
    height: number;
    placeholderUrl?: string;
}
export interface IRemoteImageNode extends IRemoteImageNodeFields, IRemoteFileNode {
}
export interface IRemoteImageNodeInput extends IRemoteImageNodeFields, IRemoteFileNodeInput {
}
type GraphqlType<T> = T extends number ? "Int" | "Float" : T extends boolean ? "Boolean" : string;
export interface IGraphQLFieldConfigDefinition<TSource, R, TArgs = Record<string, unknown>> {
    type: string;
    description?: string;
    args?: {
        [Property in keyof TArgs]: GraphqlType<TArgs[Property]> | {
            type: GraphqlType<TArgs[Property]>;
            description?: string;
            defaultValue?: TArgs[Property];
        };
    };
    resolve(source: TSource, args: TArgs): R;
}
export type SchemaBuilder = Parameters<NonNullable<GatsbyNode["createSchemaCustomization"]>>[0]["schema"];
export type ImageFit = import("sharp").FitEnum[keyof import("sharp").FitEnum];
export type ImageFormat = "jpg" | "png" | "webp" | "avif" | "auto";
export type ImageLayout = "fixed" | "constrained" | "fullWidth";
export type ImageCropFocus = "center" | "top" | "right" | "bottom" | "left" | "entropy" | "edges" | "faces";
export type WidthOrHeight = {
    width: number;
    height: number;
} | {
    width: number;
    height?: never;
} | {
    width?: never;
    height: number;
};
export type CalculateImageSizesArgs = {
    fit: ImageFit;
    layout: ImageLayout;
    outputPixelDensities: Array<number>;
    breakpoints?: Array<number>;
    aspectRatio?: number;
} & WidthOrHeight;
export declare function isImage(node: {
    mimeType: IRemoteFileNode["mimeType"];
}): node is IRemoteImageNode;
export type ImageCdnTransformArgs = WidthOrHeight & {
    format: string;
    cropFocus?: ImageCropFocus | Array<ImageCropFocus>;
    quality: number;
};
type CdnSourceImage = {
    url: string;
    mimeType: string;
    filename: string;
    internal: {
        contentDigest: string;
    };
};
export type ImageCdnSourceImage = CdnSourceImage;
/**
 * The function is used to optimize image delivery by generating URLs that leverage CDN capabilities
 * @param {ImageCdnSourceImage} source - An object representing the source image, including properties like
 * URL, filename, and MIME type.
 * @param {ImageCdnTransformArgs} imageArgs - An object containing arguments for image transformation, such as
 * format, quality, and crop focus.
 * @param {string} pathPrefix - This parameter allows for an optional path prefix in the generated relative URL,
 * primarily influencing the location of the image transformation endpoint, particularly if not in the domain root.
 * @returns {string} A string representing the generated URL for the image on the CDN. Ideally it is relative url
 * (starting with `/`, resulting in usage of same domain as site itself), but it can also be absolute URL.
 */
export type ImageCdnUrlGeneratorFn = (source: ImageCdnSourceImage, imageArgs: ImageCdnTransformArgs, pathPrefix: string) => string;
export type FileCdnSourceImage = CdnSourceImage;
/**
 * The function is used to optimize image delivery by generating URLs that leverage CDN capabilities
 * @param {FileCdnSourceImage} source - An object representing the source file, including properties like
 * URL, filename, and MIME type.
 * @param {string} pathPrefix - A string representing the path prefix to be prepended to the
 * generated URL.
 * @returns {string} A string representing the generated URL for the file on the CDN. Ideally it is relative url
 * (starting with `/`, resulting in usage of same domain as site itself), but it can also be absolute URL.
 */
export type FileCdnUrlGeneratorFn = (source: FileCdnSourceImage, pathPrefix: string) => string;
export {};