Generate power series trendline in Google Apps Script

Question

Something I'm writing in Google Apps Script for Google Sheets generates a chart. I'd like to have it generate a power series trendline, however I cannot figure out how to do this in Google Apps Script. I can generate a polynomial or linear trendline, but I cannot figure out how to have it do it as a power series.

var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getActiveSheet();
var chartBuilder = sheet.newChart();

chartBuilder.setChartType(Charts.ChartType.SCATTER)
   .addRange(range)
   .setOption("pointSize", 1)
   .setPosition(1, 1, 150, 0)
   .setOption("trendlines", {0: {type: "power series", visibleInLegend: true}});

sheet.insertChart(chartBuilder.build());

Help would be greatly appreciated. Thank you!

Answer 1

Thank you to |'-'| for finding the answer. Turns out the option is "powerSeries" not "power series" (man, I feel stupid). Google really ought to make that more clear in their documentation.