export interface DragEventWithDataTransfer extends DragEvent {
    dataTransfer: DataTransfer;
}
export declare function isDragEventWithDataTransfer(dragEvent: DragEvent): dragEvent is DragEventWithDataTransfer;
export interface ClipboardEventWithData extends ClipboardEvent {
    clipboardData: DataTransfer;
}
export declare function isClipboardEventWithData(clipboardEvent: ClipboardEvent): clipboardEvent is ClipboardEventWithData;
/**
 * Determines whether the given data transfer is intended to be a file upload/drop.
 *
 * Microsoft Office apps include an image of the copied content on the clipboard. This function returns
 * `false` for those data transfers.
 */
export declare function isFileDataTransfer(dataTransfer: DataTransfer): boolean;