[DOC]: Lacking event header that's adverticed in the docs

[gevtushenko]

Is this a duplicate?

• I confirmed there appear to be no duplicate issues for this bug and that I agree to the Code of Conduct

Is this for new documentation, or an update to existing docs?

Update

Describe the incorrect/future/missing documentation

https://nvidia.github.io/cccl/libcudacxx/runtime/event.html shows the following code:

#include <cuda/event>
#include <cuda/stream>

void record_on_stream(cuda::stream_ref stream, cudaEvent_t raw_handle) {
  cuda::event_ref e{raw_handle};
  e.record(stream);
}

but we do not provvide <cuda/event> header, so users face compilation errors #6968. We should fix the doc or introduce the header.

If this is a correction, please provide a link to the incorrect documentation. If this is a new documentation request, please link to where you have looked.

No response