in src/connectors/sheets-connector.js [187:200]
getColumnRange(tabId, propertyKey, includeSkipRows) {
let tabConfig = this.tabs[tabId];
let sheet = this.getSheet(tabId);
let columnIndex = this.getPropertyIndex(tabId, propertyKey);
let numRows = includeSkipRows ?
sheet.getLastRow() : sheet.getLastRow() - tabConfig.skipRows;
let rowStart = includeSkipRows ? 1 : tabConfig.skipRows + 1;
assert(columnIndex, `Unable to get column index for property '${propertyKey}'`);
assert(numRows >= 1, 'The number of rows in the range must be at least 1');
let range = sheet.getRange(rowStart, columnIndex, numRows, 1);
return range;
}