code: func (b *BigIP) VirtualServerPolicyNames(vs string) ([]string, error) {
  	var policies Policies
  	err, _ := b.getForEntity(&policies, uriLtm, uriVirtual, vs, "policies")
  	if err != nil {
  		return nil, err
  	}
  	retval := make([]string, 0, len(policies.Policies))
  	for _, p := range policies.Policies {
  		retval = append(retval, p.FullPath)
  	}
  	return retval, nil
  }
docs: //Get the names of policies associated with a particular virtual server