I am using the vars package and it calls a function causality() which then calls something called .duplicate. I had to modify the causality function slightly for my purposes and I called it my.causality() but now the .duplicate function is no longer known to the my.causality function. I'm fairly certain that this is due to my lack of expertise in R but if someone could tell me how to make the my.causality function know about .duplicate, it would be appreciated. Thanks.
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