Update Products Options Via Api

I would like to know how can I set/update the options of a product via API.
For example, currently I'm updating the product options via the Import tool (CSV) like this:

Product code,Language,Vendor,Options
00185,en,~,IG///inventory=N///missing_variants_handling=M///multiupload=N///required=Y///status=A; Brand Opt: SG///inventory=Y///missing_variants_handling=M///multiupload=N///required=N///status=D

I checked the Products Docs with out luck.

Please, could you help me?

Thank for your help and time.