type SaveFunction = (key: string, value: string) => void;
type DeleteFunction = (key: string) => void;
type GetFunction = (key: string) => string;
type SaveContextResponse = {
    ok: boolean;
    message: string;
    error?: unknown;
};
type ContextData = {
    transactionDate: string;
    transactionName: string;
    transactionData: {
        [k: string]: unknown;
    };
};
type GetContextResponse = {
    ok: boolean;
    contextData?: ContextData;
    error?: unknown;
};
declare class TransactionContextManager {
    private STORAGE_KEY;
    EXPIRED: string;
    NO_CONTEXT: string;
    private saveFunc;
    private deleteFunc;
    private getFunc;
    private expirationMinutes;
    initialize: (saveFunc: SaveFunction, deleteFunc: DeleteFunction, getFunc: GetFunction, expirationMinutes: number) => void;
    private save;
    private get;
    private delete;
    private isExpired;
    saveTransactionContext: (transactionName: string, transactionData: {
        [k: string]: unknown;
    }) => Promise<SaveContextResponse>;
    getTransactionContext: () => Promise<GetContextResponse>;
}
declare const _default: TransactionContextManager;
export default _default;