Creates an instance of the template, using the provided model
and
optional binding delegate
.
If instanceBindings
is supplied, each Bindable
in the returned
instance will be added to the list. This makes it easy to close all of the
bindings without walking the tree. This is not normally necessary, but is
used internally by the system.
DocumentFragment createInstance([model, BindingDelegate delegate]) =>
_self.createInstance(model, delegate);