import { ChainData } from "@0xsquid/squid-types";
import { Token } from "../../core/types";
import { TempoFeeData } from "../../services/internal/tempoService";
/**
 * Returns raw on-chain gas token data for Tempo chains, or null when the source
 * chain is not Tempo.
 */
export declare const useTempoFeeCheck: ({ fromChain, fromToken, }: {
    fromChain: ChainData | undefined;
    fromToken: Token | undefined;
}) => TempoFeeData | null;