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use MONKEY;
augment class Hash {
method merge (%b) {
hashmerge self, %b;
self;
}
sub hashmerge (%merge-into, %merge-source) {
for %merge-source.keys {
if %merge-into{$_}:exists {
hashmerge %merge-into{$_}, %merge-source{$_};
}
else {
%merge-into{$_} = %merge-source{$_};
}
}
%merge-into;
}
}
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