void EnqueueReadbacks ( [FRHICommandList](API\Runtime\RHI\FRHICommandList) & RHICmdList, TConstArrayView< [FBufferRequest](API\Plugins\Niagara\FNiagaraGpuReadbackManager\FBufferRequest) > BufferRequest, [FCompletionCallback](API\Plugins\Niagara\FNiagaraGpuReadbackManager\FCompletionCallback) Callback )