code: public OvhInstanceGroup project_serviceName_instance_group_POST(String serviceName, String name, String region, OvhInstanceGroupTypeEnum type) throws IOException {
  		String qPath = "/cloud/project/{serviceName}/instance/group";
  		StringBuilder sb = path(qPath, serviceName);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "name", name);
  		addBody(o, "region", region);
  		addBody(o, "type", type);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, OvhInstanceGroup.class);
  	}
docs: Create a group
  
  REST: POST /cloud/project/{serviceName}/instance/group
  @param name [required] instance group name
  @param region [required] Instance region
  @param serviceName [required] Project name
  @param type [required] Instance group type