public void createGroup(IamClient client) {
    CreateGroupRequest createGroupRequest = new CreateGroupRequest();
    // 组名
    createGroupRequest.setName("test_group_name");
    // 组描述
    createGroupRequest.setDescription("test_group_description");
    
    client.createGroup(createGroupRequest);
}

public void getGroup(IamClient client) {
    // 组名
    String groupName = "test_group_name";
    
    client.getGroup(groupName);
}

public void updateGroup(IamClient client) {
    // 组名
    String groupName = "test_group_name";
    // 设置更新的组信息
    UpdateGroupRequest updateGroupRequest = new UpdateGroupRequest(); 
    // 设置更新的组名
    updateGroupRequest.setName("new_group_name");
    // 设置更新的组描述
    updateGroupRequest.setDescription("new_group_description");
    
    client.updateGroup(groupName, updateGroupRequest);
}

public void deleteGroup(IamClient client) {
    // 组名
    String groupName = "test_group_name";
    
    client.deleteGroup(groupName);
}

public void listGroup(IamClient client) {
    client.listGroup();
}

public void addUserToGroup(IamClient client) {
    // 组名
    String groupName = "test_group_name";
    // 用户名
    String userName = "test_user_name";
    
    client.addUserToGroup(userName， groupName);
}

public void removeUserFromGroup(IamClient client) {
    // 组名
    String groupName = "test_group_name";
    // 用户名
    String userName = "test_user_name";
    
    client.removeUserFromGroup(userName, groupName)
}

public void listGroupsForUser(IamClient client) {
    // 用户名
    String userName = "test_user_name";
    
    client.listGroupsForUser(userName);
}

public void listUsersInGroup(IamClient client) {
    // 组名
    String groupName = "test_group_name";
    
    client.listUsersInGroup(groupName);
}