import { CustomError } from "@rarible/utils";
import type { AbstractContractAddress } from "../../common/contract-address.js";
import type { BlockchainEnum, L1BlockchainByBlockchain, WithBlockchain } from "../enum/domain.js";
/**
 * Contract address format of union service
 *
 * @example
 * ETHEREUM:0xd07dc4262bcdbf85190c01c996b4c06a461d2430
 * POLYGON:0xd07dc4262bcdbf85190c01c996b4c06a461d2430
 * FLOW:A.0x01658d9b94068f3c.CommonNFT
 */
export type UnionContractAddress<Index extends BlockchainEnum = BlockchainEnum> = WithBlockchain<Index, AbstractContractAddress<L1BlockchainByBlockchain[Index]>> & {
    __IS_CONTRACT_ADDRESS__: true;
};
export declare function toUnionContractAddress(value: string): UnionContractAddress;
export declare function toUnionContractAddressSafe(value: string): UnionContractAddress | undefined;
export declare function isUnionContractAddress(value: string): value is UnionContractAddress;
export declare class InvalidUnionContractAddressError extends CustomError {
    constructor(address: string);
}