Documentation of speaker identification/diarization capabilities

Is there any additional documentation or description of the Python test files? Some are pretty obvious. Some are not.

Transcript_scp.py is in a separate directory, python/test. What does that one do? There doesn't seem to be a sample input files it can use

And then there is test_srt and test_speaker. Not sure what test_srt is doing. Test_speaker looks like it’s a way to identify who is talking. Is there any additional documentation on that? Is it simply estimating relative distances of the speaker? There’s a big hard-code array in there. Not sure if that's something I would need