public Task <Uri> PostTranscriptionAsync(string name, string description, string locale, Dictionary <string, string> properties, IEnumerable <string> contentUrls, IEnumerable <Guid> modelIds)
        {
            var models = modelIds.Select(m => ModelIdentity.Create(m)).ToList();
            var path   = $"{SpeechToTextBasePath}Transcriptions/";

            var transcriptionDefinition = TranscriptionDefinition.Create(name, description, locale, contentUrls, properties, models);

            return(this.PostAsJsonAsync(path, transcriptionDefinition));
        }