create asset individually or group asset via api or web services

[edijames99]

hello my friend ... i'm using your open source version of patrowl (patrowl manager and patrowl engine) in my network ... now i want create asset individually or asset group via api or webservice ... but i can't find any api or webservice for this purpose ... i read all document in github ... for example : https://github.com/Patrowl/PatrowlDocs/blob/master/api/api-patrowl-manager.md ... but nowhere in these documents is it mentioned to create assets individually or in groups ...
can you please guide me on what i should do to create an asset individually or in group through web service or api ?