Do the alphabet and shape include the blank symbol?

[sickopickle]

If I have a vocabulary size of 148, should the shape be 149? What about the alphabet? Do I need to add a blank symbol there?

[kirle]

As I can see on lib.rs - Line 304;

alphabet (sequence): The labels (including the blank label, which must be first) in the order given on the inner axis of network_output.

I don't know if it's your case, but my IDE didn't show me any doccumentation on mouse hover, I need to use help(my_function)