ts90006 declaration emit message

[epikhighs]

Hi, I noticed that typescript compiler is warning me with the following msg when trying to import

import { performance } from '@perf-tools/performance';

TS9006: Declaration emit for this file requires using private name 'Entry' from module '"...../node_modules/@perf-tools/performance/src/performance/performance"'. An explicit type annotation may unblock declaration emit.

the code works, but I don't know why it's giving that message.