mypy: Fix typo in type statement.
mypy: Fix typo in type statement.

punchagan/zulip,hackerkid/zulip,dhcrzf/zulip,eeshangarg/zulip,zulip/zulip,jackrzhang/zulip,andersk/zulip,hackerkid/zulip,punchagan/zulip,kou/zulip,shubhamdhama/zulip,kou/zulip,jackrzhang/zulip,synicalsyntax/zulip,hackerkid/zulip,andersk/zulip,tommyip/zulip,shubhamdhama/zulip,rishig/zulip,zulip/zulip,rishig/zulip,punchagan/zulip,hackerkid/zulip,andersk/zulip,kou/zulip,synicalsyntax/zulip,hackerkid/zulip,kou/zulip,brainwane/zulip,tommyip/zulip,timabbott/zulip,rht/zulip,hackerkid/zulip,synicalsyntax/zulip,tommyip/zulip,mahim97/zulip,shubhamdhama/zulip,brainwane/zulip,eeshangarg/zulip,timabbott/zulip,synicalsyntax/zulip,jackrzhang/zulip,brainwane/zulip,showell/zulip,rishig/zulip,tommyip/zulip,kou/zulip,andersk/zulip,zulip/zulip,hackerkid/zulip,rht/zulip,showell/zulip,jackrzhang/zulip,showell/zulip,kou/zulip,kou/zulip,punchagan/zulip,timabbott/zulip,zulip/zulip,mahim97/zulip,eeshangarg/zulip,mahim97/zulip,rht/zulip,timabbott/zulip,shubhamdhama/zulip,zulip/zulip,synicalsyntax/zulip,eeshangarg/zulip,eeshangarg/zulip,timabbott/zulip,dhcrzf/zulip,brainwane/zulip,jackrzhang/zulip,dhcrzf/zulip,showell/zulip,shubhamdhama/zulip,jackrzhang/zulip,mahim97/zulip,jackrzhang/zulip,dhcrzf/zulip,brainwane/zulip,tommyip/zulip,showell/zulip,rishig/zulip,mahim97/zulip,rht/zulip,tommyip/zulip,synicalsyntax/zulip,rishig/zulip,showell/zulip,punchagan/zulip,dhcrzf/zulip,timabbott/zulip,brainwane/zulip,dhcrzf/zulip,brainwane/zulip,rht/zulip,dhcrzf/zulip,rht/zulip,rht/zulip,shubhamdhama/zulip,shubhamdhama/zulip,eeshangarg/zulip,zulip/zulip,rishig/zulip,punchagan/zulip,tommyip/zulip,andersk/zulip,rishig/zulip,punchagan/zulip,eeshangarg/zulip,andersk/zulip,zulip/zulip,synicalsyntax/zulip,mahim97/zulip,andersk/zulip,showell/zulip,timabbott/zulip