/// <summary>
 /// Asynchronously retrieves a model within this dataset.
 /// This method just creates a <see cref="ModelReference"/> and delegates to <see cref="BigQueryClient.GetModel(ModelReference, GetModelOptions)"/>.
 /// </summary>
 /// <param name="modelId">The model ID. Must not be null.</param>
 /// <param name="options">The options for the operation. May be null, in which case defaults will be supplied.</param>
 /// <returns>A task representing the asynchronous operation. When complete, the result is
 /// the requested table.</returns>
 public Task <BigQueryModel> GetModelAsync(string modelId, GetModelOptions options = null) =>
 _client.GetModelAsync(GetModelReference(modelId), options);