/**
 *  Utility for determining the preview value given an object.
 */
import { TemplateResult } from 'lit-html';
export declare enum PreviewTypes {
    Image = "image",
    Text = "text"
}
/**
 * In the editor configuration it allows for providing a list of preview keys
 * or a single preview key to use for finding the preview value. This method
 * combines them into a single array to normalize the value for other methods.
 *
 * @param previewKeys Array of preview keys to use for previewing a field.
 * @param previewKey Preview key to use for previewing a field.
 */
export declare function combinePreviewKeys(previewKeys?: Array<string>, previewKey?: string): Array<string>;
export declare function findPreviewValue(value: Record<string, any>, previewFieldKeys: Array<string>, defaultValue: string): string;
export declare function findOrGuessPreviewValue(value: Record<string, any>, previewFieldKeys: Array<string>, defaultValue: string): string;
export declare function templatePreviewValue(previewValue: string, previewType: PreviewTypes, defaultValue: string, index?: number): TemplateResult;
export declare function templateIndex(index?: number): TemplateResult;