Question regard Deep SRL module

[sumba101]

Hi, I was going through your Deep SRL code which is the implementation of the paper Deep Semantic Role Labeling: What Works and What’s Next and i couldn't locate the places where you have implemented the viterbi decoding or the BIO and SRL constraints which are mentioned in the paper. Could you please help me in case i am missing something in the code or have these not been implemented in the code ?
Also, can this implementation handle multiple predicates in the same sentence?