May I ask for a multiple batch example nc file?

As the title, I need a example nc file containing multiple batch data.
Can you share it?

By the way. in the function add_tisr_var() in data_utils.py, the following code:
` # Remove `batch` dimension of size one if present. An error will be raised if
# the `batch` dimension exists and has size greater than one.
data_no_batch = data.squeeze("batch") if "batch" in data.dims else data`
Why does it say that a error wil raied if batch > 1？

So how contruct a multiple batch dataset ?
Thanks a lot!

qc