Property 'show' does not exist on type 'SkyBox'

Hi, team!
I confirmed that “show” property of SkyBox is still available through Sandcastle.
But this property is not listed in official doc, SkyBox - Cesium Documentation and Cesium.d.ts.
So I get a typescript compile error.

Why was this removed?
Cesium Version: 1.140

This was not intentionally ‘removed’. It was only accidentally omitted as a side-effect of the type definition cleanups. This was tracked in SkyBox show property not recognized by types · Issue #13356 · CesiumGS/cesium · GitHub and should be solved in Type definition fix for SkyBox show property by lukemckinstry · Pull Request #13357 · CesiumGS/cesium · GitHub

(So it should work again in the next release. For the current release … there may be some workarounds with (...as any)... trickery if it’s urgent…)

For now I would suggest // @ts-expect-error to silence the error, because it is caused by missing type definitions. When 1.141 is released the type definitions will be fixed, that error will disappear, and TS will begin reminding you to remove the @ts-expect-error comment.