Cannot set optional value, prints nil - swift

Question

I am working on project that writes to google sheets. I am trying to Unmerge cells. This function works however it unmerges everything in the sheet. This is because it is not setting the .range value. When I print (as seen below) the "test" value all range values are shown accordingly however when I print the "request.unmergeCells?.range" it says nil. I am further confused as I use this exact code elsewhere for a merge command and it loads the values fine (see second snippet of code.)
I have tried for days to resolve this issue with no avail. Any thoughts?
func unmergecell1() {
let request = GTLRSheets_Request.init()
let test = GTLRSheets_GridRange.init()
rowstart = 4
rowend = 100
columnstart = 0
columnend = 100
test.startRowIndex = rowstart
test.endRowIndex = rowend
test.startColumnIndex = columnstart
test.endColumnIndex = columnend
request.unmergeCells?.range = test
request.unmergeCells = GTLRSheets_UnmergeCellsRequest.init()
print("=========unmerge==============")
print(test)
print(request.unmergeCells?.range)
let batchUpdate = GTLRSheets_BatchUpdateSpreadsheetRequest.init()
batchUpdate.requests = [request]
let createQuery = GTLRSheetsQuery_SpreadsheetsBatchUpdate.query(withObject: batchUpdate, spreadsheetId: spreadsheetId)
service.executeQuery(createQuery) { (ticket, result, NSError) in
}
}
func mergecell() {
let request = GTLRSheets_Request.init()
request.mergeCells = GTLRSheets_MergeCellsRequest.init()
let test = GTLRSheets_GridRange.init()
test.startRowIndex = rowstart
test.endRowIndex = rowend
test.startColumnIndex = columnstart
test.endColumnIndex = columnend
request.mergeCells?.range = test
request.mergeCells?.mergeType = kGTLRSheets_MergeCellsRequest_MergeType_MergeRows
let batchUpdate = GTLRSheets_BatchUpdateSpreadsheetRequest.init()
batchUpdate.requests = [request]
let createQuery = GTLRSheetsQuery_SpreadsheetsBatchUpdate.query(withObject: batchUpdate, spreadsheetId: spreadsheetId)
service.executeQuery(createQuery) { (ticket, result, NSError) in
}
}

Answer 1

I think you need to switch these 2 lines:
request.unmergeCells?.range = test
request.unmergeCells = GTLRSheets_UnmergeCellsRequest.init()
The 2nd line initates the unmerge request, and only after you initate it can you add the range to it. So by making it the other way round, as below, it should work.
request.unmergeCells = GTLRSheets_UnmergeCellsRequest.init()
request.unmergeCells?.range = test