import type { ResponseMetadata, UploadOptions, UploadResponse } from "./interfaces";
/**
 * Represents an error when a request to ImageKit is invalid.
 */
export declare class ImageKitInvalidRequestError extends Error {
    /**
     * Optional metadata about the response. It is only available if server returns a response.
     */
    readonly $ResponseMetadata?: ResponseMetadata;
    constructor(message: string, responseMetadata?: ResponseMetadata);
}
/**
 * Represents an error when an upload operation is aborted.
 */
export declare class ImageKitAbortError extends Error {
    /**
     * The reason why the operation was aborted, which can be any JavaScript value. If not specified, the reason is set to "AbortError" DOMException.
     */
    reason?: unknown;
    constructor(message: string, reason?: unknown);
}
/**
 * Represents a network error during an upload operation to ImageKit.
 */
export declare class ImageKitUploadNetworkError extends Error {
    constructor(message: string);
}
/**
 * Represents a server error from ImageKit during an upload operation.
 */
export declare class ImageKitServerError extends Error {
    /**
     * Optional metadata about the response. It is only available if server returns a response.
     */
    readonly $ResponseMetadata?: ResponseMetadata;
    constructor(message: string, responseMetadata?: ResponseMetadata);
}
/**
 * Uploads a file to ImageKit with the given upload options. This function uses V1 API, check the [API docs](https://imagekit.io/docs/api-reference/upload-file/upload-file) for more details.
 *
 * @throws {ImageKitInvalidRequestError} If the request is invalid.
 * @throws {ImageKitAbortError} If the request is aborted.
 * @throws {ImageKitUploadNetworkError} If there is a network error.
 * @throws {ImageKitServerError} If there is a server error.
 *
 * @param {UploadOptions} uploadOptions - The options for uploading the file.
 * @returns {Promise<UploadResponse>} A Promise resolving to a successful UploadResponse.
 */
export declare const upload: (uploadOptions: UploadOptions) => Promise<UploadResponse>;