Updating linked column value

[ytannus]

I got stuck when I try to update a item column value (provider_name) that it s linked to another board (providers “table").

This is my example code:

main_board = moncli.client.get_board_by_id(1234567890)
providers_board = moncli.client.get_board_by_id(9876543210)
provider = providers_board.get_items_by_multiple_column_values(column='name', column_values=['John Doe'])[0]
item = main_board.get_items_by_multiple_column_values(column='name', column_values=['2131361'])[0]
item.change_column_value(id='provider_name',column_value=[provider])

When I run it I got this error:

`UnboundLocalError: local variable 'column_id' referenced before assignment`

I red your wiki and searches in internet without success.
Do you have an example code to update a linked column value of an linked item?

I will really appreciate your help