왜 이렇게 나오는 걸까요?

imacparkui-iMac:~ parkimac$ sudo npm install firebase-tools -g

npm WARN deprecated har-validator@5.1.5: this library is no longer supported

npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142

changed 648 packages, and audited 649 packages in 27s

18 packages are looking for funding

  run `npm fund` for details

found 0 vulnerabilities

imacparkui-iMac:~ parkimac$