message: prettier only
  I'm about to edit this file
diff: -const { declareInjections } = require('@cardstack/di');
  -const route = require('koa-better-route');
  +const { declareInjections } = require("@cardstack/di");
  +const route = require("koa-better-route");
  -module.exports = declareInjections({
  +module.exports = declareInjections(
  + {
  // TODO: the code-generators service really belongs in this package,
  // not the hub. But that depends on refactoring the relationship
  // between hub and ember-cli, which I'm planning to do anyway as
  // part of containerization.
  - service: `hub:code-generators`
  + service: `hub:code-generators`,
  },
  class CodeGenMiddleware {
  constructor() {
  - this.before = 'authentication';
  + this.before = "authentication";
  }
  middleware() {
  - return route.get('/codegen/:module_prefix', async (ctxt) => {
  - ctxt.body = await this.service.generateCode(ctxt.routeParams.module_prefix);
  - ctxt.response.set('Access-Control-Allow-Origin', '*');
  - ctxt.response.set('Content-Type', 'application/javascript');
  + return route.get("/codegen/:module_prefix", async ctxt => {
  + ctxt.body = await this.service.generateCode(
  + ctxt.routeParams.module_prefix
  + );
  + ctxt.response.set("Access-Control-Allow-Origin", "*");
  + ctxt.response.set("Content-Type", "application/javascript");
  ctxt.status = 200;
  });
  }
  -
  -});
  + }
  +);
  