code: public ArrayList<String> data_extension_GET(OvhCountryEnum country) throws IOException {
  		String qPath = "/domain/data/extension";
  		StringBuilder sb = path(qPath);
  		query(sb, "country", country);
  		String resp = execN(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, t2);
  	}
docs: List all the extensions for a specific country
  
  REST: GET /domain/data/extension
  @param country [required] Country targeted