You don't tell us what the error is. However, running the code give the error:

Can't locate object method "Person" via package "name" (perhaps you fo
+rgot to load "name"?) at ...
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so something like that is most likely what you are seeing. The issue is your use of the struct function. You need to write it like:

struct Person => {
    name => '$',
    age => '$',
    peers => '@',
};
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