/**
 * Shield operations - deposit tokens into Railgun
 */
import type { Signer } from 'ethers';
import type { SupportedToken } from './local-config';
export interface ShieldOptions {
    amount: string;
    token: SupportedToken;
    signer: Signer;
    network?: 'mainnet' | 'testnet';
    chainId?: number;
}
export interface ShieldResult {
    hash: string;
    railgunAddress: string;
    amount: string;
    token: string;
}
/**
 * Shield tokens into Railgun
 * This deposits from doxxed wallet into shielded balance
 */
export declare function shieldTokens(options: ShieldOptions): Promise<ShieldResult>;