Update the value of a contact


I am using the Smartsheet Python library, but this could also apply to the API. I am having trouble updating the Assigned To column, which I see is actually a column type of contact list. I have tried specifying a cell value and I get an error message saying "'Value is not supported for this column type. Use objectValue instead.'" When I set the object value to a Contact object, I get the message ""Required object attribute(s) are missing from your request: cell.value.""

The API does not allow setting both the object_value and the value.

If anyone has successfully updated the contact/assignee for a row or has suggestions, please help!