code: func (c *Manager) ListAttachedTags(ctx context.Context, ref mo.Reference) ([]string, error) {
  	spec := internal.NewAssociation(ref)
  	url := internal.URL(c, internal.AssociationPath).WithAction("list-attached-tags")
  	var res []string
  	return res, c.Do(ctx, url.Request(http.MethodPost, spec), &res)
  }
docs: // ListAttachedTags fetches the array of tag IDs attached to the given object.