如何在Golang中将配置数组传递给YAML文件？

Question

I am trying to create a YAML configuration file using gosexy/yaml.

I know how to create a YAML file of the following format:

another:
  tree:
  - 1

I use the code settings.Set("another","tree",[]int{1}) to create the above file.

Now, how can I create a file of the format

another:
  - tree: 1

I tried using the code settings.Set("another",[]{yaml.Set("tree",1)}) to create the above file. As it might be obvious, I receive a type error since I am not passing the type to the array.

Am I on the right track? If yes, what should be the type to be passed. If no, what is the alternative way to do this?