beginner struggling to implement this package in leaflet routing machine

[Alireza002L9]

as the title says, i dont know how i can make this work in routing machine, im new to this field and i have no idea how routing machine works, i tried to change the source code instructions but it doesnt seem to work and i have no idea where or how to implement this package on top of routing machine, sorry for this basic question but i would appreciate any help!