tree 82708ad249bc22254e2e393e8e8a6470ccaff870
parent 40dfc97ee2c53d3142becc3f92193ac516eb3f7a
author Charles Chan <rascov@gmail.com> 1596653887 -0700
committer Charles Chan <rascov@gmail.com> 1596655382 -0700

Add note for some functions and fix document error

Change-Id: Ide2500c393d2a135f343263dd8c3e3f0e644efe0