asas-py

Your task is to develop a fully-functional mini-application using the 'asas-py' Python package. This application will serve as a simple but robust client for interacting with a hypothetical online service that provides weather data. The app should allow users to query current weather conditions based on location and display the results in an easy-to-read format.

Here are the steps and features you need to implement:
1. Set up a virtual environment and install 'asas-py'. Use 'asas-py' to define the API schema for your weather service client. Include endpoints for fetching current weather data by city name or coordinates.
2. Implement a function that takes user input for location (either city name or coordinates) and uses 'asas-py' to construct a request to the weather service.
3. Display the retrieved weather information in a human-readable format, including temperature, humidity, wind speed, and a brief description of the weather condition.
4. Add error handling to manage cases where the location provided does not return any data or if there's an issue connecting to the weather service.
5. Optionally, enhance the application by adding features such as caching responses to avoid redundant requests, displaying historical weather data, or allowing users to switch between Celsius and Fahrenheit for temperature readings.

Use 'asas-py' throughout your development process to ensure your client is type-safe and elegantly structured. Explain how 'asas-py' simplifies the creation of the API client and enhances the reliability of your application.