LocalStatsCollection
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class LocalStatsCollection
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Get a named LocalStatsCollection, creating it if it doesn't already exist.
Get the StatsCollection for your "local state".
Future, Local (from twitter-util) A LocalStatsCollection is associated with a name, which will be used as the prefix when flushing the local counters and metrics back into the global
Stats. Because it's stored in aLocal, a collection can be looked up several times and return the same object, as long as it's in the same "flow of execution" (as defined byFuture). Counters and metrics that are updated on a LocalStatsCollection are also updated on the globalStatsobject, using the same names. When flushed, these counters and metrics are saved into the globalStatswith the collection's name as a prefix.