if len(toMerge) == 0 {
		return policy.Policy{}, errNoSuchPolicy
	}
	return policy.MergePolicies(toMerge...), nil
}

// GetPolicyDoc - gets the policy doc which has the policy and some metadata.
// Exactly one policy must be specified here.
func (store *IAMStoreSys) GetPolicyDoc(name string) (r PolicyDoc, err error) {
	name = strings.TrimSpace(name)
	if name == "" {
		return r, errInvalidArgument
	}