import { FormNode } from '@syncfusion/ej2-form-renderer';
/** @private */
export declare class ClipboardHelper {
    private static readonly CLIPBOARD_PREFIX;
    /** @private */
    static copyToClipboard(field: FormNode): Promise<void>;
    /** @private */
    static readFromClipboard(): Promise<FormNode | null>;
    /** @private */
    static hasClipboardData(): Promise<boolean>;
    /** @private */
    static createUniqueField(sourceField: FormNode): FormNode;
    /** @private */
    static clearData(): Promise<void>;
}