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Pack hook_hybrid -- prolog/retry_undefined.pl
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Undocumented predicates

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

 uses_undefined_hook
 install_retry_undefined(Arg1, Arg2)
 is_parent_goal(Arg1)
 is_parent_goal(Arg1, Arg2)
 is_parent_goal(Arg1)
 is_parent_goal(Arg1, Arg2)