mypy: Fix bad type annotation
mypy: Fix bad type annotation

dhcrzf/zulip,rht/zulip,Galexrt/zulip,zulip/zulip,j831/zulip,christi3k/zulip,rht/zulip,showell/zulip,dhcrzf/zulip,rht/zulip,andersk/zulip,rht/zulip,eeshangarg/zulip,brainwane/zulip,dhcrzf/zulip,hackerkid/zulip,showell/zulip,verma-varsha/zulip,hackerkid/zulip,mahim97/zulip,jrowan/zulip,dhcrzf/zulip,andersk/zulip,christi3k/zulip,vabs22/zulip,brainwane/zulip,tommyip/zulip,amanharitsh123/zulip,christi3k/zulip,punchagan/zulip,zulip/zulip,shubhamdhama/zulip,showell/zulip,Galexrt/zulip,brainwane/zulip,j831/zulip,tommyip/zulip,mahim97/zulip,synicalsyntax/zulip,andersk/zulip,christi3k/zulip,andersk/zulip,jrowan/zulip,hackerkid/zulip,punchagan/zulip,tommyip/zulip,vabs22/zulip,synicalsyntax/zulip,zulip/zulip,jackrzhang/zulip,vaidap/zulip,timabbott/zulip,rishig/zulip,shubhamdhama/zulip,christi3k/zulip,jackrzhang/zulip,brockwhittaker/zulip,punchagan/zulip,andersk/zulip,showell/zulip,mahim97/zulip,zulip/zulip,shubhamdhama/zulip,hackerkid/zulip,showell/zulip,jackrzhang/zulip,eeshangarg/zulip,j831/zulip,showell/zulip,jackrzhang/zulip,verma-varsha/zulip,timabbott/zulip,mahim97/zulip,rishig/zulip,amanharitsh123/zulip,punchagan/zulip,brainwane/zulip,eeshangarg/zulip,Galexrt/zulip,kou/zulip,eeshangarg/zulip,timabbott/zulip,vabs22/zulip,shubhamdhama/zulip,tommyip/zulip,vabs22/zulip,j831/zulip,synicalsyntax/zulip,zulip/zulip,timabbott/zulip,shubhamdhama/zulip,verma-varsha/zulip,vaidap/zulip,showell/zulip,kou/zulip,kou/zulip,brockwhittaker/zulip,dhcrzf/zulip,j831/zulip,vabs22/zulip,synicalsyntax/zulip,vaidap/zulip,dhcrzf/zulip,shubhamdhama/zulip,brockwhittaker/zulip,brainwane/zulip,punchagan/zulip,verma-varsha/zulip,hackerkid/zulip,kou/zulip,jackrzhang/zulip,brockwhittaker/zulip,rishig/zulip,dhcrzf/zulip,punchagan/zulip,timabbott/zulip,Galexrt/zulip,jrowan/zulip,Galexrt/zulip,zulip/zulip,vaidap/zulip,Galexrt/zulip,eeshangarg/zulip,tommyip/zulip,vaidap/zulip,jackrzhang/zulip,rishig/zulip,jrowan/zulip,j831/zulip,mahim97/zulip,brockwhittaker/zulip,eeshangarg/zulip,christi3k/zulip,rishig/zulip,timabbott/zulip,rht/zulip,andersk/zulip,mahim97/zulip,kou/zulip,amanharitsh123/zulip,amanharitsh123/zulip,jackrzhang/zulip,brockwhittaker/zulip,jrowan/zulip,amanharitsh123/zulip,rht/zulip,timabbott/zulip,kou/zulip,kou/zulip,tommyip/zulip,brainwane/zulip,amanharitsh123/zulip,rishig/zulip,tommyip/zulip,andersk/zulip,eeshangarg/zulip,zulip/zulip,rht/zulip,synicalsyntax/zulip,synicalsyntax/zulip,hackerkid/zulip,Galexrt/zulip,hackerkid/zulip,rishig/zulip,vabs22/zulip,synicalsyntax/zulip,punchagan/zulip,shubhamdhama/zulip,verma-varsha/zulip,brainwane/zulip,vaidap/zulip,jrowan/zulip,verma-varsha/zulip