IColumn

// add label with given text, default style, and default placement
// and determine the preferred size automatically

const label1 = graph.addLabel(node, 'Some Label')

// add label with given text, placement, style, size, and tag (user object)
const label2 = graph.addLabel(
  node,
  'Some Label',
  InteriorNodeLabelModel.CENTER,
  new LabelStyle(),
  new Size(10, 150),
  userObject,
)

// add label with given text and style but default placement
// and determine the preferred size automatically
const label3 = graph.addLabel({
  owner: node,
  text: 'Some Label',
  style: new LabelStyle(),
})

for (const label of node.labels) {
  // ...
}

graph.remove(label)

owner.tag = newTag

const tag = owner.tag