Made 'getter' optional.
Made 'getter' optional.

trystanclarke/DefinitelyTyped,progre/DefinitelyTyped,use-strict/DefinitelyTyped,reppners/DefinitelyTyped,progre/DefinitelyTyped,hellopao/DefinitelyTyped,georgemarshall/DefinitelyTyped,Ptival/DefinitelyTyped,isman-usoh/DefinitelyTyped,gcastre/DefinitelyTyped,amanmahajan7/DefinitelyTyped,Syati/DefinitelyTyped,vagarenko/DefinitelyTyped,pwelter34/DefinitelyTyped,TrabacchinLuigi/DefinitelyTyped,chrismbarr/DefinitelyTyped,takenet/DefinitelyTyped,ashwinr/DefinitelyTyped,georgemarshall/DefinitelyTyped,martinduparc/DefinitelyTyped,jraymakers/DefinitelyTyped,pocesar/DefinitelyTyped,frogcjn/DefinitelyTyped,abbasmhd/DefinitelyTyped,markogresak/DefinitelyTyped,dydek/DefinitelyTyped,dmoonfire/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,abner/DefinitelyTyped,elisee/DefinitelyTyped,nainslie/DefinitelyTyped,daptiv/DefinitelyTyped,HPFOD/DefinitelyTyped,donnut/DefinitelyTyped,martinduparc/DefinitelyTyped,gandjustas/DefinitelyTyped,glenndierckx/DefinitelyTyped,tan9/DefinitelyTyped,hatz48/DefinitelyTyped,davidpricedev/DefinitelyTyped,newclear/DefinitelyTyped,slavomirvojacek/adbrain-typescript-definitions,rcchen/DefinitelyTyped,mcrawshaw/DefinitelyTyped,CodeZombieCH/DefinitelyTyped,bdoss/DefinitelyTyped,aciccarello/DefinitelyTyped,johan-gorter/DefinitelyTyped,gyohk/DefinitelyTyped,mhegazy/DefinitelyTyped,TrabacchinLuigi/DefinitelyTyped,GlennQuirynen/DefinitelyTyped,MugeSo/DefinitelyTyped,mhegazy/DefinitelyTyped,florentpoujol/DefinitelyTyped,frogcjn/DefinitelyTyped,mattanja/DefinitelyTyped,nitintutlani/DefinitelyTyped,stacktracejs/DefinitelyTyped,RX14/DefinitelyTyped,wilfrem/DefinitelyTyped,QuatroCode/DefinitelyTyped,mjjames/DefinitelyTyped,AgentME/DefinitelyTyped,stephenjelfs/DefinitelyTyped,sergey-buturlakin/DefinitelyTyped,benishouga/DefinitelyTyped,AgentME/DefinitelyTyped,alextkachman/DefinitelyTyped,sledorze/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,Zzzen/DefinitelyTyped,Pro/DefinitelyTyped,aciccarello/DefinitelyTyped,wilfrem/DefinitelyTyped,Zorgatone/DefinitelyTyped,amanmahajan7/DefinitelyTyped,flyfishMT/DefinitelyTyped,esperco/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,alextkachman/DefinitelyTyped,greglo/DefinitelyTyped,EnableSoftware/DefinitelyTyped,mattblang/DefinitelyTyped,nitintutlani/DefinitelyTyped,musicist288/DefinitelyTyped,optical/DefinitelyTyped,nycdotnet/DefinitelyTyped,jimthedev/DefinitelyTyped,pocesar/DefinitelyTyped,smrq/DefinitelyTyped,egeland/DefinitelyTyped,georgemarshall/DefinitelyTyped,bennett000/DefinitelyTyped,raijinsetsu/DefinitelyTyped,AyaMorisawa/DefinitelyTyped,GlennQuirynen/DefinitelyTyped,bridge-ufsc/DefinitelyTyped,gcastre/DefinitelyTyped,sledorze/DefinitelyTyped,arma-gast/DefinitelyTyped,nobuoka/DefinitelyTyped,damianog/DefinitelyTyped,hellopao/DefinitelyTyped,ajtowf/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,rschmukler/DefinitelyTyped,ryan10132/DefinitelyTyped,drinchev/DefinitelyTyped,mcrawshaw/DefinitelyTyped,nobuoka/DefinitelyTyped,nmalaguti/DefinitelyTyped,yuit/DefinitelyTyped,Softpagehomeware/DefinitelyTyped,benishouga/DefinitelyTyped,syuilo/DefinitelyTyped,teves-castro/DefinitelyTyped,hellopao/DefinitelyTyped,minodisk/DefinitelyTyped,davidpricedev/DefinitelyTyped,abner/DefinitelyTyped,drinchev/DefinitelyTyped,Zorgatone/DefinitelyTyped,AyaMorisawa/DefinitelyTyped,mshmelev/DefinitelyTyped,bennett000/DefinitelyTyped,Penryn/DefinitelyTyped,behzad888/DefinitelyTyped,jimthedev/DefinitelyTyped,mattanja/DefinitelyTyped,YousefED/DefinitelyTyped,amir-arad/DefinitelyTyped,dydek/DefinitelyTyped,CodeZombieCH/DefinitelyTyped,ashwinr/DefinitelyTyped,vagarenko/DefinitelyTyped,minodisk/DefinitelyTyped,micurs/DefinitelyTyped,nfriend/DefinitelyTyped,schmuli/DefinitelyTyped,gyohk/DefinitelyTyped,smrq/DefinitelyTyped,axelcostaspena/DefinitelyTyped,isman-usoh/DefinitelyTyped,psnider/DefinitelyTyped,nmalaguti/DefinitelyTyped,takenet/DefinitelyTyped,psnider/DefinitelyTyped,RX14/DefinitelyTyped,greglo/DefinitelyTyped,benishouga/DefinitelyTyped,xStrom/DefinitelyTyped,Dashlane/DefinitelyTyped,rolandzwaga/DefinitelyTyped,OpenMaths/DefinitelyTyped,stephenjelfs/DefinitelyTyped,damianog/DefinitelyTyped,trystanclarke/DefinitelyTyped,Syati/DefinitelyTyped,philippstucki/DefinitelyTyped,egeland/DefinitelyTyped,EnableSoftware/DefinitelyTyped,mareek/DefinitelyTyped,jasonswearingen/DefinitelyTyped,bdoss/DefinitelyTyped,borisyankov/DefinitelyTyped,Karabur/DefinitelyTyped,arusakov/DefinitelyTyped,borisyankov/DefinitelyTyped,Karabur/DefinitelyTyped,danfma/DefinitelyTyped,jraymakers/DefinitelyTyped,fredgalvao/DefinitelyTyped,aciccarello/DefinitelyTyped,behzad888/DefinitelyTyped,AgentME/DefinitelyTyped,scriby/DefinitelyTyped,jimthedev/DefinitelyTyped,nakakura/DefinitelyTyped,YousefED/DefinitelyTyped,QuatroCode/DefinitelyTyped,newclear/DefinitelyTyped,schmuli/DefinitelyTyped,paulmorphy/DefinitelyTyped,jasonswearingen/DefinitelyTyped,Dominator008/DefinitelyTyped,esperco/DefinitelyTyped,dmoonfire/DefinitelyTyped,Ptival/DefinitelyTyped,Litee/DefinitelyTyped,bridge-ufsc/DefinitelyTyped,dsebastien/DefinitelyTyped,Dominator008/DefinitelyTyped,syuilo/DefinitelyTyped,onecentlin/DefinitelyTyped,magny/DefinitelyTyped,emanuelhp/DefinitelyTyped,nainslie/DefinitelyTyped,emanuelhp/DefinitelyTyped,use-strict/DefinitelyTyped,martinduparc/DefinitelyTyped,danfma/DefinitelyTyped,chrootsu/DefinitelyTyped,Penryn/DefinitelyTyped,zuzusik/DefinitelyTyped,subash-a/DefinitelyTyped,dsebastien/DefinitelyTyped,Pro/DefinitelyTyped,zuzusik/DefinitelyTyped,applesaucers/lodash-invokeMap,sclausen/DefinitelyTyped,OpenMaths/DefinitelyTyped,florentpoujol/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,arusakov/DefinitelyTyped,scriby/DefinitelyTyped,pocesar/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,sclausen/DefinitelyTyped,zuzusik/DefinitelyTyped,paulmorphy/DefinitelyTyped,magny/DefinitelyTyped,alvarorahul/DefinitelyTyped,xStrom/DefinitelyTyped,subash-a/DefinitelyTyped,laurentiustamate94/DefinitelyTyped,alexdresko/DefinitelyTyped,alexdresko/DefinitelyTyped,UzEE/DefinitelyTyped,teves-castro/DefinitelyTyped,abbasmhd/DefinitelyTyped,donnut/DefinitelyTyped,shlomiassaf/DefinitelyTyped,schmuli/DefinitelyTyped,Zzzen/DefinitelyTyped,chrootsu/DefinitelyTyped,pwelter34/DefinitelyTyped,johan-gorter/DefinitelyTyped,jsaelhof/DefinitelyTyped,mareek/DefinitelyTyped,stacktracejs/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,chbrown/DefinitelyTyped,arusakov/DefinitelyTyped,benliddicott/DefinitelyTyped,MugeSo/DefinitelyTyped,rschmukler/DefinitelyTyped,mcliment/DefinitelyTyped,AgentME/DefinitelyTyped,mattblang/DefinitelyTyped,reppners/DefinitelyTyped,elisee/DefinitelyTyped,Softpagehomeware/DefinitelyTyped,olemp/DefinitelyTyped,nakakura/DefinitelyTyped,chrismbarr/DefinitelyTyped,tan9/DefinitelyTyped,mshmelev/DefinitelyTyped,psnider/DefinitelyTyped,hatz48/DefinitelyTyped,rcchen/DefinitelyTyped,mjjames/DefinitelyTyped,philippstucki/DefinitelyTyped,georgemarshall/DefinitelyTyped,ajtowf/DefinitelyTyped,UzEE/DefinitelyTyped,alvarorahul/DefinitelyTyped,raijinsetsu/DefinitelyTyped,sergey-buturlakin/DefinitelyTyped,nycdotnet/DefinitelyTyped,onecentlin/DefinitelyTyped,ryan-codingintrigue/DefinitelyTyped,eugenpodaru/DefinitelyTyped,HPFOD/DefinitelyTyped,glenndierckx/DefinitelyTyped,Dashlane/DefinitelyTyped,flyfishMT/DefinitelyTyped,jsaelhof/DefinitelyTyped,shlomiassaf/DefinitelyTyped,yuit/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,fredgalvao/DefinitelyTyped,applesaucers/lodash-invokeMap,optical/DefinitelyTyped,Litee/DefinitelyTyped,arma-gast/DefinitelyTyped,gandjustas/DefinitelyTyped,one-pieces/DefinitelyTyped,rolandzwaga/DefinitelyTyped,slavomirvojacek/adbrain-typescript-definitions,olemp/DefinitelyTyped