Example of Manual Package Loading

GlyphClassCompletionListProvider.cs

[HtmlCompletionProvider(CompletionTypes.Values, "*", "class")]
[ContentType("htmlx")]
class GlyphClassCompletionListProvider : BaseClassCompletionProvider
{
        private static bool _glyphsLoaded;

        public override string CompletionType
        {
            get { return CompletionTypes.Values; }
        }

        public override IList<HtmlCompletion> GetEntries(HtmlCompletionContext context)
        {
            if(!_glyphsLoaded) 
            {
                 LoadGlyphfriend();
            }
        
            var completionItems = new List<HtmlCompletion>();
            foreach (var glyph in VSPackage.Glyphs)
            {
                completionItems.Add(CreateItem(glyph.Key, glyph.Value, context.Session));
            }
            return completionItems;
        }
           
        private void LoadGlyphfriend()
        {
            var package = GlobalServiceProvider.GetShell().LoadPackage<VSPackage>();
            _glyphsLoaded = package != null;
        }
}