@datasaver and @dataloader example

This example shows you can use the @datasaver and @dataloader decorators to annotated functions that save and load data so that they can also return metadata.

This metadata is then exposed in the Hamilton UI / inspectable by other adapters.

To run this example, you can use the following command:

1. Install the requirements:

pip install -r requirements.txt

2. Have the Hamilton UI set up. See UI docs for instructions.
3. You have modified the run.py / notebook to log to the right Hamilton UI project.
4. Run the example:

python run.py

or via the notebook.