import { AnyParachain } from '@galacticcouncil/xc-core';
import { PolkadotSigner } from 'polkadot-api';
import { SubstrateCall, SubstrateTxObserver } from './types';
export declare class SubstrateSigner {
    #private;
    constructor(chain: AnyParachain, signer: PolkadotSigner);
    signAndSend(call: SubstrateCall, observer: SubstrateTxObserver): void;
    private getFeeAsset;
}