2.2.3 PrintAsyncNotifyConversationStyle

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The PrintAsyncNotifyConversationStyle enumeration MUST specify the communication mode expected between the sender and a registered client.

 typedef [v1_enum] enum 
 {
   kBiDirectional = 0,
   kUniDirectional = 1,
 } PrintAsyncNotifyConversationStyle;

kBiDirectional:  Bidirectional communication mode is specified. The sender expects the client to send responses to notifications.

kUniDirectional:  Unidirectional communication mode is specified. The sender does not expect the client to respond to notifications.