Should i need to create lm.binary and trie with my own data


I understand how to create a lm.binary and trie files as per the documentation.
Now, i am training with pre-trained models 0.5.1.
So, Here I need to create a new lm.binary file and trie file with the transcript in csv file?

common_voice_en_18885793.wav,97580,she attended the chapin school
common_voice_en_18885788.wav,142124,today their programs are available on the internet

Or is it enough created from the document which is from here -->