Attributes for ports decorated by a communication aspect.
A port on an actor decorated by a composite communication aspect must
specify the request port that input tokens are routed to.
Patricia Derler
$Id: CommunicationAspectAttributes.java 70402 2014-10-23 00:52:20Z cxh $
Ptolemy II 10.0
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The sequenceNumber indicates the order in which communication aspects
are used. It defaults to the integer value -1 to indicate that
this communication aspect is not used. After enabling the quantity
manager, this sequence number gets updated automatically.