I am adding a new JE via xml-rpc and have a question. about the add.

I added a new field to the JE by the Odoo Studio. The new field is a Many2one selection.

When I add the new JE how do I add this new field via the xml-rpc? 

Do I use the value of one of the selection items I had added?

Example:  NewField is the name of the field I added and 10 - Denver is one of the values. What is the name of the table where the values are kept?

'NewField' => '10 - Denver'

is this correct?