mypy: Mark request_data as Optional based on requests API.
mypy: Mark request_data as Optional based on requests API.

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