tree 6cc3b37c80cf1c783f886317f677aa9896be62da
parent 06e87eca46752b0109d2a96f2d422a577619a03c
author Tony Mack <tmack@cs.princeton.edu> 1426624646 -0400
committer Tony Mack <tmack@cs.princeton.edu> 1426624646 -0400

create logger for observer