Get the values of a mapping node

[pantelis-karamolegkos]

Is your feature request related to a problem? Please describe.
I want to be able to get the values of a (say mapping) node, including comments.

Describe the solution you'd like
Let's say for example we have the following yaml

apiVersion: helm.toolkit.fluxcd.io/v2beta1
kind: HelmRelease
metadata:
  name: myapp
  namespace: default
spec:
  chart:
    spec:
      # THIS IS A COMMENT
      chart: charts/myapp
      reconcileStrategy: Revision
      sourceRef:
        kind: GitRepository
        name: my-branch
        namespace: systems

I want to be able to do something like the following:

(assume file is an *os.File with the above contents)

path, err := yaml.PathString("$.spec.chart")
node, err := path.ReadNode(file)
contents := node.GetContents() // or node.GetChildren() or whatever
fmt.Println(contents)

result

      # THIS IS A COMMENT
      chart: charts/myapp
      reconcileStrategy: Revision
      sourceRef:
        kind: GitRepository
        name: my-branch
        namespace: systems

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[goccy]

@pantelis-karamolegkos This is already possible. Please refer to this issue.

#574