[hack] Add .mli file for Lock
[hack] Add .mli file for Lock

Reviewed By: andrewjkennedy

Differential Revision: D6209647

fbshipit-source-id: 6c1d429232b7561c61e29bebaaedfb1448f85c86

JonathanUsername/flow,jamesgpearce/flow,ylu1317/flow,mroch/flow,facebook/flow,jamesgpearce/flow,facebook/flow,gabelevi/flow,claudiopro/flow,nmote/flow,gabelevi/flow,nmote/flow,popham/flow,JonathanUsername/flow,mroch/flow,claudiopro/flow,ylu1317/flow,claudiopro/flow,facebook/flow,nmote/flow,mroch/flow,JonathanUsername/flow,popham/flow,claudiopro/flow,facebook/flow,popham/flow,JonathanUsername/flow,facebook/flow,nmote/flow,popham/flow,samwgoldman/flow,JonathanUsername/flow,TiddoLangerak/flow,facebook/flow,AgentME/flow,ylu1317/flow,ylu1317/flow,samwgoldman/flow,claudiopro/flow,samwgoldman/flow,gabelevi/flow,AgentME/flow,nmote/flow,facebook/flow,JonathanUsername/flow,jamesgpearce/flow,nmote/flow,AgentME/flow,jamesgpearce/flow,TiddoLangerak/flow,gabelevi/flow,jamesgpearce/flow,gabelevi/flow,TiddoLangerak/flow,samwgoldman/flow,gabelevi/flow,samwgoldman/flow,AgentME/flow,nmote/flow,popham/flow,mroch/flow,samwgoldman/flow,mroch/flow,jamesgpearce/flow,mroch/flow,ylu1317/flow,mroch/flow,gabelevi/flow,popham/flow,AgentME/flow,TiddoLangerak/flow,TiddoLangerak/flow,samwgoldman/flow,popham/flow,jamesgpearce/flow,JonathanUsername/flow