function testGetMiles() {
var row = 4;
var originColumn = 5;
var destColumn = 6;
var ss = SpreadsheetApp.getActiveSheet();
var origin = ss.getRange(row,originColumn).getValue();
var destination = ss.getRange(row,destColumn).getValue();
Logger.log(`origin: ${origin}`);
Logger.log(`destination: ${destination}`);
Logger.log(`Distance: ${GetMiles(origin,destination)}`);