import { AnyEvmChain, AssetAmount, ContractConfig } from '@galacticcouncil/xc-core';
import { Call, Platform } from '../types';
export declare class EvmPlatform implements Platform<ContractConfig> {
    #private;
    constructor(chain: AnyEvmChain);
    /**
     * Build the ordered call sequence of a transfer.
     *
     * The route's calls, preceded by the prerequisites the sender has to sign
     * first - [wrap?, approve?, ...calls]. Each prerequisite becomes
     * unnecessary once executed, so re-building after a signed step yields a
     * shorter sequence.
     *
     * Every call is its own signature. A substrate signed origin batches the
     * same steps into one, and reaches them through the route's `extrinsic`
     * config rather than here.
     */
    buildCalls(account: string, amount: bigint, _feeBalance: AssetAmount, configs: ContractConfig[]): Promise<Call[]>;
    private buildTransferCall;
    private buildFollowCall;
    /**
     * Fee of a transfer, in the route's fee asset.
     *
     * Gas of the transfer calls, unless the amount is drawn from the very
     * balance that pays for the transfer ({@link ContractConfig.wrapNative}).
     * Then the call value and the gas of every prerequisite are part of it
     * too - max being derived as balance - fee, an incomplete fee leaves
     * nothing to wrap, deliver & execute with.
     *
     * For an erc20 source the value stays out: it is either reported as the
     * route's destination fee (snowbridge, the ntt executor cost) or drawn from
     * a balance the amount doesn't compete for. Its prerequisites are charged
     * for all the same - the approve is a transaction the sender signs and pays
     * gas on.
     *
     * Which configs have prerequisites is decided exactly as {@link buildCalls}
     * decides it. Estimating the transfer alone instead left an erc20 source
     * reporting no fee at all: the transfer reverts until the approve lands,
     * and an unmeasurable fee falls back to zero.
     */
    estimateFee(account: string, amount: bigint, feeBalance: AssetAmount, configs: ContractConfig[]): Promise<AssetAmount>;
}