[SR-Users] t_load_contacts() and t_next_contacts() guts

[KamDev Essa]

I am tackling Hunting and see that there are two functions recommended to accomplish this. Before I jump into using them I wanted to know a bit about each regard to the call flow.
>From where does t_load_contacts() load contacts and how does it order then in case of a serial fork flow, 
Is there a generic way of doing it say with a loop in the script. Docs on these two functions are a bit cryptic for me 
H     
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