Design a Trade Ledger Class

Design a class that records daily stock trading activity and returns all recorded trades in sorted order. Requirements: - Implement a method to register a trade. - Each trade contains at least: - a timestamp - a stock symbol - whether the action is buy or sell - a quantity or amount - Implement a method `getAllTrades()` that returns every recorded trade sorted by: 1. timestamp ascending 2. amount ascending when timestamps are equal You should describe the class interface, the data structures you would use, and the time complexity of the main operations.