code: func (k *KeyringSectionV1) FindMember(id *identity.ID) (*primitive.KeyringMember, *primitive.MEKShare, error) {
  	var krm *primitive.KeyringMember
  	var mekshare *primitive.MEKShare
  	for _, m := range k.Members {
  		if *m.Body.OwnerID == *id {
  			krm, mekshare = convertV1KRM(&m)
  			break
  		}
  	}
  
  	if krm == nil {
  		return nil, nil, ErrMemberNotFound
  	}
  
  	return krm, mekshare, nil
  }
docs: // FindMember returns the membership and mekshare for the given user id.
  // The data is returned in V2 format.