import { TxSignatureResult } from "../dto/TransactionDTO";
export interface UnlockMetadata {
    currentTime?: number;
    elapsedTime?: number;
}
export declare function unlock(conditionsStr: string, unlockParams: string[], sigResult: TxSignatureResult, metadata?: UnlockMetadata): boolean | null;
export declare function checkGrammar(conditionsStr: string): boolean | null;