endpoint for getting Network Slice information

Hi, I'm working on my Master's Thesis at IT Aveiro on the Horizon 2020 5GASP project. We need information from the Network Slice to implement tests for the validation of the NetApps. Is there a way to get the Network Slice information asked by the NetApp? If not, is it being implemented? And if not again, we would like to contribute and implement it, could we?