Hello,
I'm trying to utilize Angular CLI with the with newest version of the JS API (4.9) along with Typescript and @types/arcgis-js-api (4.9.0). I'm running into a build issue that can be repeated on multiple machines. There appears to an issue with the "AbortSignal" variable in the typescript definition file. Here is the error thrown:

I can get around this issue by commenting out the AbortSignal variable in the definition file:

However, this doesn't help during automated builds.
Is this a bug with typescript definition file? Any suggestions would be greatly appreciated.
Thank you,