[typescript type error] pair(ChildOf, entity) results a type error

[asgardcitizen]

Description

 WORLD.add(e1, pair(ChildOf, e2));

gives a type error:

Argument of type 'Pair<unknown, unknown>' is not assignable to parameter of type 'Id<undefined>'.
  Type 'Pair<unknown, unknown>' is not assignable to type 'Pair<undefined, unknown>'.
    Type 'Pair<unknown, unknown>' is not assignable to type '{ readonly __nominal_Pair: unique symbol; readonly __pred: undefined; readonly __obj: unknown; }'.
      Types of property '__pred' are incompatible.
        Type 'unknown' is not assignable to type 'undefined'.ts(2345)

[EncodedVenom]

This seems to be a problem with an outdated types file upon further investigation. Feel free to reopen if this is happening on the latest version.