What is AsOp mean?

[DragonZS]

in ps-lite/include/ps/internal/parallel_kv_match.h function ParallelOrderedMatch
what does AsOp mean?

And are there some doc that I can quickly get what the code do

thanks.

[mli]

Assignment operator

[DragonZS]

I cannot find the defination of AsOp, does it mean AssignOp ?
And I cannot find where includes the file parallel_kv_match.h, can I delete it, or in what cases can I use it ?