Where is a list of panel field names

Hello

Where can I get a list of the field names that I need to provide from the database to the panel
For example:
Time series panel
You need to get the fields: “time_sec” and “value”

My question is there an ordered list for each panel which field names it expects to receive?

I can’t find this list in the documentation for each panel

Many thanks to all the helpers for the new users