code: public OvhOperation serviceName_role_roleId_member_POST(String serviceName, String roleId, String note, String username) throws IOException {
  		String qPath = "/dbaas/logs/{serviceName}/role/{roleId}/member";
  		StringBuilder sb = path(qPath, serviceName, roleId);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "note", note);
  		addBody(o, "username", username);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, OvhOperation.class);
  	}
docs: Append user into the member list of specified role
  
  REST: POST /dbaas/logs/{serviceName}/role/{roleId}/member
  @param serviceName [required] Service name
  @param roleId [required] Role ID
  @param username [required] Username
  @param note [required] Custom note