hunk.code_window:   fn: BuilderHandlerFn<OptT>,
   ): Builder<OptT> {
     const cjh = experimental.jobs.createJobHandler;
     const handler = cjh<json.JsonObject, BuilderInput, BuilderOutput>((options, context) => {
       const scheduler = context.scheduler;
       const progressChannel = context.createChannel('progress');
       const logChannel = context.createChannel('log');
       let currentState: BuilderProgressState = BuilderProgressState.Stopped;
  
hunk.labels: keep keep keep replace keep keep keep keep
hunk.after_edit:   const handler = cjh<json.JsonObject, BuilderInput, OutT>((options, context) => {
  
hunk.file_path: packages/angular_devkit/architect/src/create-builder.ts
hunk.type: replace
file: {
    "name": "devkit",
    "version": "0.0.0",
    "description": "Schematics specific to DevKit (used internally, not released)",
    "scripts": {
      "preinstall": "echo DO NOT INSTALL THIS PROJECT, ONLY THE ROOT PROJECT. && exit 1"
    },
    "schematics": "./collection.json",
    "private": true,
    "dependencies": {
      "@angular-devkit/core": "0.0.0",
      "@angular-devkit/schematics": "0.0.0"
    }
  }
  