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| pub fn observe( | ||
| &self, | ||
| world: &mut World, | ||
| callback: Box<dyn Fn(&dyn PartialReflect) + Send + Sync>, |
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Observers normally have world access, but this signature doesn't expose it. Should this be either something like dyn Fn(&dyn PartialReflect, DeferredWorld), or a full impl IntoSystem<InRef<dyn PartialReflect>, (), M>? Changing it later would be a breaking change.
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Testing