public IntOpenHashSet getRecipientDSIds() {
    return receipientDSIds;
  }
Returns the list of <code>Gateway</code> s to which the event has been sent.

@return the list of <code>Gateway</code> s to which the event has been sent
geode-core/src/main/java/org/apache/geode/internal/cache/wan/GatewaySenderEventCallbackArgument.java