import { BalanceChecker } from '../../integration/ethereum/BalanceChecker';
import { SupportedToken } from '../models/relayer';
export declare class RequiredBalanceChecker {
    private balanceChecker;
    constructor(balanceChecker: BalanceChecker);
    findTokenWithRequiredBalance(supportedTokens: SupportedToken[], contractAddress: string): Promise<string | null>;
}
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