spreadsheet_id=spreadsheet_id,
range_rows=range_rows)
# Data is returned as a list of arrays, an array of values for each row
- sheet_data_rows = sheet_data.get('values')
+ sheet_data_rows = sheet_data.get('values', [])
# Transform batch of rows to JSON with keys for each column
sheet_data_tf, row_num = transform_sheet_data(