Décorateurs

https://www.typescriptlang.org/docs/handbook/decorators.html

https://blog.wizardsoftheweb.pro/typescript-decorators-introduction/

https://codeburst.io/decorate-your-code-with-typescript-decorators-5be4a4ffecb4

http://blog.wolksoftware.com/decorators-reflection-javascript-typescript