messages.go
func (m *messagePageIterator) Next(ctx context.Context) (*MessagePage, error) {
	mp := new(MessagePage)
	err := m.p.Next(ctx, mp)
	if err != nil {
		return nil, err
	}
	m.p.SetNextPageURI(mp.NextPageURI)
	return mp, nil
}
func (m *messagePageIterator) Next(ctx context.Context) (*MessagePage, error) {
	mp := new(MessagePage)
	err := m.p.Next(ctx, mp)
	if err != nil {
		return nil, err
	}
	m.p.SetNextPageURI(mp.NextPageURI)
	return mp, nil
}
func ( m * messagePageIterator ) Next ( ctx context . Context ) ( * MessagePage , error ) { mp := new ( MessagePage ) err := m . p . Next ( ctx , mp ) if err != nil { return nil , err } m . p . SetNextPageURI ( mp . NextPageURI ) return mp , nil }
// Next returns the next page of resources. If there are no more resources,
// NoMoreResults is returned.
Next returns the next page of resources . If there are no more resources NoMoreResults is returned .