public BulkAliasDescriptor Add(IAliasAction action) => Fluent.Assign <BulkAliasDescriptor, IBulkAliasRequest, IAliasAction>(this, action, (a, v) => a.Actions.AddIfNotNull(v));
public BulkAliasDescriptor Add(IAliasAction action) => Fluent.Assign<BulkAliasDescriptor, IBulkAliasRequest>(this, a=> a.Actions.AddIfNotNull(action));