import type { PluginFunction } from '@graphql-codegen/plugin-helpers';
declare const VALID_FORMATS: readonly ["base64", "stringify", "json"];
export declare const NormalizeCodegenPlugin: PluginFunction<{
    format?: (typeof VALID_FORMATS)[number];
    defaultKeys?: string[];
    typeKeys?: Record<string, string | string[] | null>;
}>;
export {};