export declare const mergeTypes: (types: any[], options?: {
    schemaDefinition?: boolean;
    all?: boolean;
} & Partial<Pick<Partial<import("@graphql-toolkit/schema-merging").Config>, "useSchemaDefinition" | "forceSchemaDefinition" | "throwOnConflict" | "reverseDirectives" | "exclusions" | "sort" | "convertExtensions">>) => string;