old_contents: const i = require('itemDataRefresher.js');
  
  fateBus.subscribe(module, 'fate.configurationLoaded', function(topic, configuration) {
    new i.ItemDataRefresher('roll', configuration.shaderDataTSV)
  });
  
new_contents: const i = require('itemDataRefresher.js');
  
  fateBus.subscribe(module, 'fate.configurationLoaded', function(topic, configuration) {
    new i.ItemDataRefresher('roll', configuration.rollDataTSV)
  });
  
subject: Use the right TSV data source