마무리,finalization

translation은 마무리가 최적인 듯

MKL
finalizer

Finalizer = https://en.wikipedia.org/wiki/Finalizer
completion

뜻은
완성 (일반적으로.)

completion
완비 or 완비화 (수학.)

https://encyclopediaofmath.org/wiki/Completion
https://mathworld.wolfram.com/Completion.html
MKL : metric_space