public static async Task <Document> ReadDocumentAsync(this DocumentClient docClient, DocCollection dc, string docId)
 {
     return(await docClient.ReadDocumentAsync(dc.ToDocUri(docId)));
 }
 public static async Task <Document> UpsertDocumentAsync <T>(this DocumentClient docClient, DocCollection dc, T document) where T : IIdentifiableItem
 {
     return(await docClient.UpsertDocumentAsync(dc.ToDocUri(document.Id), document));
 }