public EventHubsOutputDescriptor<StreamMessageType> withSasKey(String sasToken) {
    this.sasToken = Optional.ofNullable(StringUtils.stripToNull(sasToken));
    return this;
  }
SAS Token of the associated output stream. Required to access the output Event Hubs per stream.

@param sasToken the SAS token required to access to Event Hubs entity
@return this output descriptor
samza-azure/src/main/java/org/apache/samza/system/eventhub/descriptors/EventHubsOutputDescriptor.java