Describe the Bug

from typing import NewType

UserID = NewType("UserID", int)

Python: 3.12

Pyrefly's LSP server reports "Import NewType is unused" even though it is clearly used. The CLI does not report any errors. I'm using pyrefly 0.53.0, but I also observed this in the sandbox (there's a little indicator under the import of NewType and hovering over it shows the error). I'm not using VSCode, just pyrefly lsp.

Sandbox Link

https://pyrefly.org/sandbox/?project=N4IgZglgNgpgziAXKOBDAdgEwEYHsAeAdAA4CeSIAxAAQDqMUAxrgLYzUAuunAFuwAqkATjDBRS1AMoYcBADS8IcakuqpqxVAHMYAHXQ0A7nxHVSuAK7VGGaoaEQOMBXB6pTM6rHfo1eCxycpMQQ6FoqvoIcPLjohPqUCdQAEjAeHtaWxLDUYDCoHBYiyrhgispoWHj4iEkAtNQA4jCBIqhQdRwQbEHE7Ix8jADWoeF5MDiow-XUAKpw7CIAbvlQAPocwTAAFACUnNyhcH2MgaF5QiKYvfAzMPh9DmzogYaOPLzsAJIAIgCiuXyhWKvAKdnYcAsxGIuCEgW2MEIWkIagCuGYLGyLWc1C0uE6%2BMwolCjggsQUMRWQgULUYuxmtAcTjUWGoQgskVI0VimSJ1EwEBEp3EETMliE1GwQlwhgWQn0%2BjA0pYvVGKkxsMCADkYIYACpbBXoeZpX7UAC81B1%2Bq2210IBNQl%2B9oUoQ4uxAchAAWgcBI5EQVDmXSgjgkYA5pzJ6DgRqJZTAsJYBTW6AsLGwaW2NQi7uodQAfNQ4BwhLVfNRKyJgb4wPatenM2XqMB8ABfe36T0gMgiMSkQhcFhQCg0QR9kWVWT4TLoSBaIoFaPxAxSGDsHgcDjEOCIAD0e97onEhFhWj3MHQe8w6Lge%2BYc4gC6ES9ie9ysLUS1Q0FQ2ByD7zouXQ8rgxAgTGK5kNy6B1FScDRha1D2gAzIQACMABMnboCAbZelMXQrAAYtAMAUFO1T%2BnhQA

(Only applicable for extension issues) IDE Information

No response