public DeltaInstanceNamespaceConfiguration Instance(string typeName, object properties = null, Action<DeltaInstanceDescriptor> modify = null) {
var instance = new DeltaInstanceDescriptor(){
Namespace = ScopedNamespace,
TypeName = typeName
}.Require(requireScriptName);
if (properties != null)
instance.Properties = properties;
if (modify != null) modify(instance);
config.Instances.Add(instance);
return this;
}
