import { ERC20Token } from '../../types/token.types';
export declare const checkTokensForShielding: (chainId: number, erc20Addresses: string[]) => Promise<string[]>;
export declare const validateAndGetChainId: (tokens: ERC20Token[]) => number;
export declare const isSameERC20Token: (a?: ERC20Token, b?: ERC20Token) => boolean;
export declare const areErc20TokensInRegistry: (chainId: number, erc20TokenAddresses: string[]) => boolean;
