ZMQ_EVENT_ALL_V2

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
version(ZMQ_BUILD_DRAFT_API)
nothrow extern (C)
enum ZMQ_EVENT_ALL_V2 = ZMQ_EVENT_ALL_V1 | ZMQ_EVENT_PIPES_STATS;

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