functions/source/amazon-chime-recordandtranscribe/src/main/java/com/amazonaws/kvstranscribestreaming/publisher/DynamoDBTranscriptionPublisher.java (2 lines):
	- line 64: // TODO:  this is a race condition nightmare so use the leg attribute once it's available
	- line 137: // TODO:  if we need to be more precise, use the stream ARN to determine how many speakers for a given CallId