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Andrew Thompson authored
For persistant processes with some immutable metadata (riak vnode and the vnode ID, for example), implement lager:md/0 and lager:md/1 for getting/setting such metadata into the process dictionary. Such metadata is automatically included in any lager message metadata, so you can just set it in your init() function or whatever and not have to worry about passing the data around and using it in every lager call.
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