import type * as postcss from 'postcss';
import type { EsifyCSSResult, Imports, PluginMangler } from './types';
export declare const mangleKeyFrames: ({ id, root, mangler, imports, rawPrefix }: {
    id: string;
    root: postcss.Root;
    mangler: PluginMangler;
    imports: Imports;
    rawPrefix: string;
}) => EsifyCSSResult['keyframes'];