code: func (o *OrgsClient) GetTree(ctx context.Context, orgID identity.ID) ([]OrgTreeSegment, error) {
  	v := &url.Values{}
  	v.Set("org_id", orgID.String())
  
  	var segments []OrgTreeSegment
  	err := o.client.RoundTrip(ctx, "GET", "/orgtree", v, nil, &segments)
  	return segments, err
  }
docs: // GetTree returns an org tree