ditsing/ruaft @ 7a422741187168d1c86f3c0db3e3a49a70186db2

Jing Yang 165b273fec Add arguments for snapshot taking.		%!s(int64=5) %!d(string=hai) anos
..
persister	8e36805176 Add snapshot functions to persister.	%!s(int64=5) %!d(string=hai) anos
mod.rs	165b273fec Add arguments for snapshot taking.	%!s(int64=5) %!d(string=hai) anos