sourceSpreadsheetId property
Input only.
Immutable. Google Sheets ID of the spreadsheet. This spreadsheet must
contain formatted rubric settings. See
Create or reuse a rubric for an assignment.
Use of this field requires the
https://www.googleapis.com/auth/spreadsheets.readonly
or
https://www.googleapis.com/auth/spreadsheets
scope.
Implementation
core.String? sourceSpreadsheetId;