export declare const TokenUsageContext: import("@langchain/langgraph").AnnotationRoot<{
    input: {
        (annotation: import("@langchain/langgraph").SingleReducer<number, number>): import("@langchain/langgraph").BaseChannel<number, number | import("@langchain/langgraph").OverwriteValue<number>, unknown>;
        (): import("@langchain/langgraph").LastValue<number>;
        Root: <S extends import("@langchain/langgraph").StateDefinition>(sd: S) => import("@langchain/langgraph").AnnotationRoot<S>;
    };
    output: {
        (annotation: import("@langchain/langgraph").SingleReducer<number, number>): import("@langchain/langgraph").BaseChannel<number, number | import("@langchain/langgraph").OverwriteValue<number>, unknown>;
        (): import("@langchain/langgraph").LastValue<number>;
        Root: <S extends import("@langchain/langgraph").StateDefinition>(sd: S) => import("@langchain/langgraph").AnnotationRoot<S>;
    };
}>;
//# sourceMappingURL=tokenusage.context.d.ts.map