import type * as spec from '@galacean/effects-specification';
export declare function getBackgroundImage(template: spec.TemplateContent, variables?: spec.TemplateVariables): string | string[] | HTMLImageElement | HTMLImageElement[] | undefined;
/**
 * @param url
 * @param template
 * @param variables
 * @param options
 * @returns
 */
export declare function combineImageTemplate(url: string | HTMLImageElement, template?: spec.TemplateContent, variables?: spec.TemplateVariables): Promise<HTMLImageElement>;