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Pack xlibrary -- prolog/expansion_module.pl
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 expansion_module(+Module, ExpansionModule)
Kludge: using swipl internals. Perhaps is not a good idea --EMM

Undocumented predicates

The following predicates are exported, but not or incorrectly documented.

 expanded_module(Arg1, Arg2)
 is_expansion_module(Arg1)