This internal class represents `typed associates' (vectors of identically-typed objects) that appear as vectors to the R user.
.Data:"list" containg the
association objects.extends:"character" and
length 1 describing the class each element in .Data must
extend"list", from data part.
Class "vector", by class "list", distance 2.signature(x = ".TypedAssociation", i = "numeric", j = "missing"):
Subset the typed association, returning a typed association with
elements i.
signature(x = ".TypedAssociation", i = "ANY", j = "ANY"):
This method is present to stop access to subsetting methods for
class list; it has no user-visibile functionality.
signature(object = ".TypedAssociation"):
Compactly display the typed associate, e.g., for
.extneds=Foo and length 5, display Foo(5).