hunk.code_window:       proto.oneOfKey2 = 'hello';
         expect(proto.oneOfKey2 instanceof Array).toBe(false);
       });
     });
  
hunk.labels: keep keep add keep keep keep
hunk.after_edit:     it('returns undefined for values that are non-existent', () => {
         const proto: any = Object.create(null);
         const root = new RootSchemaTreeNode(proto, { value: valueJson, schema: schemaJson });
         const value = root.children['objectKey1'].children['objectKey'].children['stringKey'].get();
         expect(value).toBe(undefined);
       });
  
hunk.file_path: packages/@ngtools/json-schema/src/schema-tree.spec.ts
hunk.type: add
file: 
  export * from './console-logger-stack';
  export * from './indent';
  export * from './logger';
  export * from './null-logger';
  export * from './transform-logger';
  