unread_ops: Add a quick comment explaining an interface.
unread_ops: Add a quick comment explaining an interface.

eeshangarg/zulip,showell/zulip,rishig/zulip,shubhamdhama/zulip,tommyip/zulip,jackrzhang/zulip,showell/zulip,hackerkid/zulip,timabbott/zulip,brainwane/zulip,dhcrzf/zulip,zulip/zulip,zulip/zulip,synicalsyntax/zulip,punchagan/zulip,kou/zulip,jackrzhang/zulip,tommyip/zulip,eeshangarg/zulip,shubhamdhama/zulip,andersk/zulip,rishig/zulip,kou/zulip,rht/zulip,showell/zulip,zulip/zulip,showell/zulip,synicalsyntax/zulip,brainwane/zulip,jackrzhang/zulip,synicalsyntax/zulip,timabbott/zulip,brainwane/zulip,andersk/zulip,tommyip/zulip,kou/zulip,brainwane/zulip,synicalsyntax/zulip,brainwane/zulip,showell/zulip,shubhamdhama/zulip,timabbott/zulip,dhcrzf/zulip,eeshangarg/zulip,shubhamdhama/zulip,kou/zulip,jackrzhang/zulip,tommyip/zulip,jackrzhang/zulip,zulip/zulip,eeshangarg/zulip,shubhamdhama/zulip,rishig/zulip,zulip/zulip,eeshangarg/zulip,dhcrzf/zulip,rht/zulip,zulip/zulip,brainwane/zulip,synicalsyntax/zulip,dhcrzf/zulip,jackrzhang/zulip,shubhamdhama/zulip,andersk/zulip,synicalsyntax/zulip,andersk/zulip,rht/zulip,kou/zulip,kou/zulip,tommyip/zulip,tommyip/zulip,timabbott/zulip,kou/zulip,hackerkid/zulip,hackerkid/zulip,punchagan/zulip,rishig/zulip,timabbott/zulip,hackerkid/zulip,andersk/zulip,brainwane/zulip,punchagan/zulip,rht/zulip,rht/zulip,punchagan/zulip,hackerkid/zulip,timabbott/zulip,timabbott/zulip,shubhamdhama/zulip,punchagan/zulip,andersk/zulip,dhcrzf/zulip,hackerkid/zulip,rishig/zulip,jackrzhang/zulip,eeshangarg/zulip,hackerkid/zulip,dhcrzf/zulip,dhcrzf/zulip,rishig/zulip,rishig/zulip,andersk/zulip,eeshangarg/zulip,showell/zulip,showell/zulip,zulip/zulip,synicalsyntax/zulip,rht/zulip,tommyip/zulip,rht/zulip,punchagan/zulip,punchagan/zulip