# Address Class

## Overview

The `Address` class extends the `Request` class and represents an address with sender and receiver contact information.

## Properties

- `sender`: An instance of the `Contact` class representing the sender's contact information.
- `receiver`: An instance of the `Contact` class representing the receiver's contact information.

## Constructor

The constructor accepts optional parameters for the sender and receiver contact information. If not provided, the default value is null.

## Related Classes

- `Contact`: A class representing contact information.