How to limit the number of examples in dataset, for testing?
### Describe the bug

I am using this command:
`data = load_dataset("json", data_files=data_path)`
However, I want to add a parameter, to limit the number of loaded examples to be 10, for development purposes, but can't find this simple parameter.

### Steps to reproduce the bug

In the description.

### Expected behavior

To be able to limit the number of examples

### Environment info

Nothing special