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For the eventTypeCodes we allow for more than 10 event types to be specified in the subscription request. Users can also use the "ALL" to subscribe to all event types.
V1 vs V2 differences
Version 1 allows a single container visit event type code per request, Version 2 supports multiple container visit event type codes in a single request. Version 2 also supports the use of “ALL” to subscribe to all events for one or more containers.
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