import { BaseWorkflowBuilderPlugin } from '@interchainjs/types';
import { Transaction } from '../../transaction';
import { SolanaWorkflowBuilderContext } from '../context';
export declare const SIGNATURE_STAGING_KEYS: {
    readonly SIGNATURE: "signature";
    readonly SIGNED_TRANSACTION: "signed_transaction";
};
/**
 * Input parameters for SignaturePlugin
 */
export interface SignatureParams {
    transaction: Transaction;
    messageBytes: Uint8Array;
}
/**
 * Plugin to sign Solana transactions
 */
export declare class SignaturePlugin extends BaseWorkflowBuilderPlugin<SignatureParams, SolanaWorkflowBuilderContext> {
    constructor();
    protected afterRetrieveParams(params: Record<string, unknown>): SignatureParams;
    protected onBuild(ctx: SolanaWorkflowBuilderContext, params: SignatureParams): Promise<void>;
}