import { Address } from 'viem'; export declare class OnChainIdentifier { isEVM: boolean; address: string | Address; private constructor(); static from_evm(address: Address): OnChainIdentifier; static from_btc(address: string): OnChainIdentifier; unwrap_evm(): Address; unwrap_btc(): string; isEvm(): this is { address: Address; isEVM: true; }; isBtc(): this is { address: string; isEVM: false; }; }