import type { GetMeshSourcePayload, MeshHandler, MeshHandlerOptions, MeshSource, YamlConfig } from '@graphql-mesh/types';
export default class SupergraphHandler implements MeshHandler {
    private config;
    private baseDir;
    private supergraphSdl;
    private importFn;
    private fetchFn;
    private logger;
    constructor({ config, baseDir, store, importFn, logger, }: MeshHandlerOptions<YamlConfig.Handler['supergraph']>);
    private getSupergraphSdl;
    getMeshSource({ fetchFn }: GetMeshSourcePayload): Promise<MeshSource>;
}