Add lint rules for mypy type annotations.
Add lint rules for mypy type annotations.

verma-varsha/zulip,showell/zulip,rht/zulip,niftynei/zulip,amyliu345/zulip,jrowan/zulip,zulip/zulip,j831/zulip,zulip/zulip,mohsenSy/zulip,isht3/zulip,vabs22/zulip,Diptanshu8/zulip,sup95/zulip,jphilipsen05/zulip,Diptanshu8/zulip,ahmadassaf/zulip,umkay/zulip,timabbott/zulip,brainwane/zulip,timabbott/zulip,aakash-cr7/zulip,Galexrt/zulip,susansls/zulip,jrowan/zulip,vaidap/zulip,shubhamdhama/zulip,verma-varsha/zulip,timabbott/zulip,rishig/zulip,dhcrzf/zulip,Vallher/zulip,ryanbackman/zulip,grave-w-grave/zulip,vikas-parashar/zulip,j831/zulip,showell/zulip,AZtheAsian/zulip,arpith/zulip,amanharitsh123/zulip,Vallher/zulip,Jianchun1/zulip,paxapy/zulip,tommyip/zulip,KingxBanana/zulip,PhilSk/zulip,PhilSk/zulip,calvinleenyc/zulip,jainayush975/zulip,umkay/zulip,mahim97/zulip,samatdav/zulip,jphilipsen05/zulip,Galexrt/zulip,vabs22/zulip,JPJPJPOPOP/zulip,Galexrt/zulip,tommyip/zulip,christi3k/zulip,SmartPeople/zulip,paxapy/zulip,susansls/zulip,eeshangarg/zulip,brainwane/zulip,calvinleenyc/zulip,reyha/zulip,verma-varsha/zulip,SmartPeople/zulip,Galexrt/zulip,andersk/zulip,amyliu345/zulip,j831/zulip,dhcrzf/zulip,sonali0901/zulip,jackrzhang/zulip,synicalsyntax/zulip,punchagan/zulip,vikas-parashar/zulip,brockwhittaker/zulip,brockwhittaker/zulip,souravbadami/zulip,blaze225/zulip,eeshangarg/zulip,Juanvulcano/zulip,ahmadassaf/zulip,jrowan/zulip,blaze225/zulip,peguin40/zulip,jphilipsen05/zulip,joyhchen/zulip,eeshangarg/zulip,niftynei/zulip,j831/zulip,timabbott/zulip,showell/zulip,SmartPeople/zulip,sonali0901/zulip,rht/zulip,vikas-parashar/zulip,amyliu345/zulip,mahim97/zulip,hackerkid/zulip,zacps/zulip,zacps/zulip,dattatreya303/zulip,jrowan/zulip,samatdav/zulip,souravbadami/zulip,amyliu345/zulip,krtkmj/zulip,dhcrzf/zulip,Vallher/zulip,sharmaeklavya2/zulip,vabs22/zulip,Diptanshu8/zulip,tommyip/zulip,brockwhittaker/zulip,JPJPJPOPOP/zulip,shubhamdhama/zulip,AZtheAsian/zulip,KingxBanana/zulip,showell/zulip,samatdav/zulip,grave-w-grave/zulip,dattatreya303/zulip,SmartPeople/zulip,jphilipsen05/zulip,synicalsyntax/zulip,PhilSk/zulip,Galexrt/zulip,vaidap/zulip,AZtheAsian/zulip,dawran6/zulip,isht3/zulip,TigorC/zulip,amanharitsh123/zulip,paxapy/zulip,isht3/zulip,brockwhittaker/zulip,tommyip/zulip,Juanvulcano/zulip,ryanbackman/zulip,susansls/zulip,vaidap/zulip,jphilipsen05/zulip,umkay/zulip,Vallher/zulip,timabbott/zulip,mohsenSy/zulip,verma-varsha/zulip,jackrzhang/zulip,showell/zulip,KingxBanana/zulip,ahmadassaf/zulip,aakash-cr7/zulip,niftynei/zulip,susansls/zulip,shubhamdhama/zulip,krtkmj/zulip,reyha/zulip,synicalsyntax/zulip,calvinleenyc/zulip,sup95/zulip,zacps/zulip,eeshangarg/zulip,sonali0901/zulip,zacps/zulip,TigorC/zulip,AZtheAsian/zulip,souravbadami/zulip,jphilipsen05/zulip,mohsenSy/zulip,Diptanshu8/zulip,j831/zulip,ahmadassaf/zulip,TigorC/zulip,KingxBanana/zulip,hackerkid/zulip,krtkmj/zulip,vaidap/zulip,dhcrzf/zulip,andersk/zulip,Juanvulcano/zulip,hackerkid/zulip,blaze225/zulip,zacps/zulip,Jianchun1/zulip,Vallher/zulip,Diptanshu8/zulip,andersk/zulip,dattatreya303/zulip,umkay/zulip,reyha/zulip,punchagan/zulip,punchagan/zulip,eeshangarg/zulip,aakash-cr7/zulip,sharmaeklavya2/zulip,brainwane/zulip,andersk/zulip,rht/zulip,jrowan/zulip,susansls/zulip,eeshangarg/zulip,shubhamdhama/zulip,mohsenSy/zulip,rht/zulip,Vallher/zulip,Galexrt/zulip,Vallher/zulip,dattatreya303/zulip,joyhchen/zulip,JPJPJPOPOP/zulip,amanharitsh123/zulip,andersk/zulip,niftynei/zulip,punchagan/zulip,jackrzhang/zulip,tommyip/zulip,arpith/zulip,eeshangarg/zulip,cosmicAsymmetry/zulip,showell/zulip,isht3/zulip,mahim97/zulip,vaidap/zulip,paxapy/zulip,brockwhittaker/zulip,mahim97/zulip,Juanvulcano/zulip,zulip/zulip,JPJPJPOPOP/zulip,tommyip/zulip,samatdav/zulip,mahim97/zulip,cosmicAsymmetry/zulip,verma-varsha/zulip,jackrzhang/zulip,ryanbackman/zulip,sharmaeklavya2/zulip,JPJPJPOPOP/zulip,christi3k/zulip,dawran6/zulip,joyhchen/zulip,jackrzhang/zulip,rht/zulip,amanharitsh123/zulip,zulip/zulip,hackerkid/zulip,Juanvulcano/zulip,grave-w-grave/zulip,christi3k/zulip,rishig/zulip,synicalsyntax/zulip,jrowan/zulip,amanharitsh123/zulip,punchagan/zulip,KingxBanana/zulip,Diptanshu8/zulip,reyha/zulip,reyha/zulip,SmartPeople/zulip,TigorC/zulip,arpith/zulip,hackerkid/zulip,blaze225/zulip,TigorC/zulip,reyha/zulip,Jianchun1/zulip,jainayush975/zulip,krtkmj/zulip,isht3/zulip,tommyip/zulip,umkay/zulip,kou/zulip,susansls/zulip,christi3k/zulip,dattatreya303/zulip,brainwane/zulip,grave-w-grave/zulip,Jianchun1/zulip,dawran6/zulip,jainayush975/zulip,peguin40/zulip,peguin40/zulip,zulip/zulip,amyliu345/zulip,jackrzhang/zulip,dawran6/zulip,grave-w-grave/zulip,mahim97/zulip,ryanbackman/zulip,umkay/zulip,jainayush975/zulip,dawran6/zulip,sup95/zulip,niftynei/zulip,zulip/zulip,krtkmj/zulip,rishig/zulip,arpith/zulip,kou/zulip,sup95/zulip,amyliu345/zulip,christi3k/zulip,christi3k/zulip,sharmaeklavya2/zulip,AZtheAsian/zulip,vaidap/zulip,zacps/zulip,Jianchun1/zulip,andersk/zulip,hackerkid/zulip,amanharitsh123/zulip,aakash-cr7/zulip,rht/zulip,brainwane/zulip,showell/zulip,sonali0901/zulip,JPJPJPOPOP/zulip,vikas-parashar/zulip,sharmaeklavya2/zulip,shubhamdhama/zulip,synicalsyntax/zulip,joyhchen/zulip,dattatreya303/zulip,jainayush975/zulip,ryanbackman/zulip,cosmicAsymmetry/zulip,vikas-parashar/zulip,rishig/zulip,timabbott/zulip,PhilSk/zulip,cosmicAsymmetry/zulip,shubhamdhama/zulip,timabbott/zulip,dhcrzf/zulip,jainayush975/zulip,punchagan/zulip,arpith/zulip,joyhchen/zulip,rishig/zulip,arpith/zulip,ahmadassaf/zulip,paxapy/zulip,calvinleenyc/zulip,samatdav/zulip,cosmicAsymmetry/zulip,verma-varsha/zulip,blaze225/zulip,sup95/zulip,SmartPeople/zulip,aakash-cr7/zulip,KingxBanana/zulip,shubhamdhama/zulip,paxapy/zulip,PhilSk/zulip,andersk/zulip,blaze225/zulip,grave-w-grave/zulip,vabs22/zulip,mohsenSy/zulip,synicalsyntax/zulip,sharmaeklavya2/zulip,umkay/zulip,krtkmj/zulip,vikas-parashar/zulip,j831/zulip,PhilSk/zulip,sonali0901/zulip,peguin40/zulip,cosmicAsymmetry/zulip,Jianchun1/zulip,kou/zulip,rht/zulip,jackrzhang/zulip,niftynei/zulip,ahmadassaf/zulip,rishig/zulip,souravbadami/zulip,dhcrzf/zulip,calvinleenyc/zulip,brainwane/zulip,TigorC/zulip,mohsenSy/zulip,calvinleenyc/zulip,ryanbackman/zulip,punchagan/zulip,kou/zulip,kou/zulip,Galexrt/zulip,joyhchen/zulip,samatdav/zulip,synicalsyntax/zulip,rishig/zulip,souravbadami/zulip,ahmadassaf/zulip,AZtheAsian/zulip,Juanvulcano/zulip,sonali0901/zulip,kou/zulip,souravbadami/zulip,zulip/zulip,vabs22/zulip,aakash-cr7/zulip,isht3/zulip,kou/zulip,brainwane/zulip,vabs22/zulip,peguin40/zulip,hackerkid/zulip,dawran6/zulip,peguin40/zulip,dhcrzf/zulip,brockwhittaker/zulip,sup95/zulip,krtkmj/zulip