Android (Java/Kotlin) Google Sheets API: Set Frozen Row

val service = ...val spreadsheetId = ...val sheetId = 0val gridProperties = GridProperties()                .setFrozenRowCount(1)val sheetProperties = SheetProperties()    .setSheetId(sheetId)    .setGridProperties(gridProperties)val request = UpdateSheetPropertiesRequest().apply {    properties = sheetProperties    fields = "gridProperties.frozenRowCount"}val requests = listOf<Request>(    Request().setUpdateSheetProperties(        request    ))val body = BatchUpdateSpreadsheetRequest().setRequests(requests)service.spreadsheets().batchUpdate(spreadsheetId, body).execute()

val service = ...val spreadsheetId = ...val sheetId = 0val requests = listOf<Request>(    // froze 1st column    Request().setUpdateSheetProperties(        UpdateSheetPropertiesRequest().apply {            properties = SheetProperties().apply {                this.sheetId = sheetId                gridProperties = GridProperties().apply {                    frozenRowCount = 1                }            }            fields = "gridProperties.frozenRowCount"        }    ))val body = BatchUpdateSpreadsheetRequest()    .setRequests(requests)service.spreadsheets().batchUpdate(spreadsheetId, body).execute()