Mark Google Maps options properties as optional.
Mark Google Maps options properties as optional.

Fixes #4364.

Chris380/DefinitelyTyped,brainded/DefinitelyTyped,paulmorphy/DefinitelyTyped,Pro/DefinitelyTyped,superduper/DefinitelyTyped,zensh/DefinitelyTyped,Syati/DefinitelyTyped,Garciat/DefinitelyTyped,rcchen/DefinitelyTyped,pkhayundi/DefinitelyTyped,trystanclarke/DefinitelyTyped,WritingPanda/DefinitelyTyped,hafenr/DefinitelyTyped,HereSinceres/DefinitelyTyped,fnipo/DefinitelyTyped,use-strict/DefinitelyTyped,elisee/DefinitelyTyped,mweststrate/DefinitelyTyped,jimthedev/DefinitelyTyped,dpsthree/DefinitelyTyped,trystanclarke/DefinitelyTyped,abner/DefinitelyTyped,shovon/DefinitelyTyped,YousefED/DefinitelyTyped,egeland/DefinitelyTyped,chrismbarr/DefinitelyTyped,acepoblete/DefinitelyTyped,glenndierckx/DefinitelyTyped,amanmahajan7/DefinitelyTyped,alvarorahul/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,bruennijs/DefinitelyTyped,aciccarello/DefinitelyTyped,psnider/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,dwango-js/DefinitelyTyped,richardTowers/DefinitelyTyped,davidpricedev/DefinitelyTyped,TanakaYutaro/DefinitelyTyped,maxlang/DefinitelyTyped,danfma/DefinitelyTyped,lseguin42/DefinitelyTyped,robert-voica/DefinitelyTyped,raijinsetsu/DefinitelyTyped,aciccarello/DefinitelyTyped,nycdotnet/DefinitelyTyped,sergey-buturlakin/DefinitelyTyped,tomtarrot/DefinitelyTyped,alainsahli/DefinitelyTyped,raijinsetsu/DefinitelyTyped,DeluxZ/DefinitelyTyped,OpenMaths/DefinitelyTyped,Ridermansb/DefinitelyTyped,aldo-roman/DefinitelyTyped,arma-gast/DefinitelyTyped,PopSugar/DefinitelyTyped,hor-crux/DefinitelyTyped,jasonswearingen/DefinitelyTyped,Minishlink/DefinitelyTyped,ducin/DefinitelyTyped,mjjames/DefinitelyTyped,axelcostaspena/DefinitelyTyped,greglockwood/DefinitelyTyped,nakakura/DefinitelyTyped,kuon/DefinitelyTyped,NelsonLamprecht/DefinitelyTyped,herrmanno/DefinitelyTyped,angelobelchior8/DefinitelyTyped,ashwinr/DefinitelyTyped,dflor003/DefinitelyTyped,daptiv/DefinitelyTyped,OfficeDev/DefinitelyTyped,lightswitch05/DefinitelyTyped,vagarenko/DefinitelyTyped,stanislavHamara/DefinitelyTyped,applesaucers/lodash-invokeMap,newclear/DefinitelyTyped,olivierlemasle/DefinitelyTyped,gcastre/DefinitelyTyped,florentpoujol/DefinitelyTyped,one-pieces/DefinitelyTyped,alexdresko/DefinitelyTyped,syuilo/DefinitelyTyped,algorithme/DefinitelyTyped,mjjames/DefinitelyTyped,whoeverest/DefinitelyTyped,uestcNaldo/DefinitelyTyped,vasek17/DefinitelyTyped,sixinli/DefinitelyTyped,igorraush/DefinitelyTyped,masonkmeyer/DefinitelyTyped,fearthecowboy/DefinitelyTyped,goaty92/DefinitelyTyped,ecramer89/DefinitelyTyped,GlennQuirynen/DefinitelyTyped,smrq/DefinitelyTyped,tscho/DefinitelyTyped,iCoreSolutions/DefinitelyTyped,tboyce/DefinitelyTyped,TheBay0r/DefinitelyTyped,hellopao/DefinitelyTyped,Nemo157/DefinitelyTyped,scriby/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,munxar/DefinitelyTyped,Pipe-shen/DefinitelyTyped,BrandonCKrueger/DefinitelyTyped,Pro/DefinitelyTyped,almstrand/DefinitelyTyped,GodsBreath/DefinitelyTyped,johan-gorter/DefinitelyTyped,ryan10132/DefinitelyTyped,ajtowf/DefinitelyTyped,EnableSoftware/DefinitelyTyped,opichals/DefinitelyTyped,musakarakas/DefinitelyTyped,ayanoin/DefinitelyTyped,mattanja/DefinitelyTyped,Dashlane/DefinitelyTyped,dragouf/DefinitelyTyped,rushi216/DefinitelyTyped,rcchen/DefinitelyTyped,eugenpodaru/DefinitelyTyped,bridge-ufsc/DefinitelyTyped,DeadAlready/DefinitelyTyped,YousefED/DefinitelyTyped,bdoss/DefinitelyTyped,musicist288/DefinitelyTyped,fishgoh0nk/DefinitelyTyped,mareek/DefinitelyTyped,nainslie/DefinitelyTyped,evandrewry/DefinitelyTyped,arusakov/DefinitelyTyped,damianog/DefinitelyTyped,mhegazy/DefinitelyTyped,duongphuhiep/DefinitelyTyped,bennett000/DefinitelyTyped,jsaelhof/DefinitelyTyped,reppners/DefinitelyTyped,mrk21/DefinitelyTyped,alextkachman/DefinitelyTyped,Zenorbi/DefinitelyTyped,behzad888/DefinitelyTyped,mszczepaniak/DefinitelyTyped,maglar0/DefinitelyTyped,Almouro/DefinitelyTyped,lbesson/DefinitelyTyped,benishouga/DefinitelyTyped,onecentlin/DefinitelyTyped,teves-castro/DefinitelyTyped,aroder/DefinitelyTyped,MugeSo/DefinitelyTyped,Penryn/DefinitelyTyped,QuatroCode/DefinitelyTyped,arusakov/DefinitelyTyped,mvarblow/DefinitelyTyped,danfma/DefinitelyTyped,esperco/DefinitelyTyped,progre/DefinitelyTyped,behzad888/DefinitelyTyped,Karabur/DefinitelyTyped,Saneyan/DefinitelyTyped,RX14/DefinitelyTyped,wilfrem/DefinitelyTyped,TrabacchinLuigi/DefinitelyTyped,bdoss/DefinitelyTyped,Karabur/DefinitelyTyped,yuit/DefinitelyTyped,mshmelev/DefinitelyTyped,minodisk/DefinitelyTyped,icereed/DefinitelyTyped,vagarenko/DefinitelyTyped,damianog/DefinitelyTyped,mcliment/DefinitelyTyped,xStrom/DefinitelyTyped,stacktracejs/DefinitelyTyped,drinchev/DefinitelyTyped,corps/DefinitelyTyped,georgemarshall/DefinitelyTyped,erosb/DefinitelyTyped,xswordsx/DefinitelyTyped,slavomirvojacek/adbrain-typescript-definitions,philippstucki/DefinitelyTyped,borisyankov/DefinitelyTyped,jccarvalhosa/DefinitelyTyped,arcticwaters/DefinitelyTyped,davidpricedev/DefinitelyTyped,egeland/DefinitelyTyped,micurs/DefinitelyTyped,alvarorahul/DefinitelyTyped,IAPark/DefinitelyTyped,martinduparc/D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