How can i add custom vocab.txt and build a language model lm.binary, trie for pretrained model v0.2.0

@lissyx sir

sir what can i do numbers presents in my large vocab.txt.
alphabet.txt(a-z, ') only.

how can i add numbers and some special characters in my alphabet.txt. if we add numbers in alphabet.txt, it is very complex. how can i handle numbers in my large vocab.txt(15 mb).

i was trouble for handling a large vocab.txt to build a language model. thank you sir.