@SlvrEagle23 yeah, you need to provide a return value in a functional fashion:

```
def handle_jingle_mode(m) = 
  if (m["jingle_mode"] == "true") then
    log("Jingle mode; stripping metadata...")
    []
  else
    m
  end
end
radio = 
map_metadata(handle_jingle_mode,update=false,strip=true,insert_missing=false,radio)
```

That should work.

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