anchor.diff:      maps => {
         country => {
           geoip_db => /usr/share/GeoIP/GeoIPv6.dat
  -        datacenters => [ad,ae,af,ag,ai,al,am,ao,aq,ar,as,at,au,aw,ax,az,ba,bb,bd,be,bf,bg,bh,bi,bj,bl,bm,bn,bo,bq,br,bs,bt,bv,bw,by,bz,ca,cc,cd,cf,cg,ch,ci,ck,cl,cm,cn,co,cr,cu,cv,cw,cx,cy,cz,de,dj,dk,dm,do,dz,ec,ee,eg,eh,er,es,et,fi,fj,fk,fm,fo,fr,ga,gb,gd,ge,gf,gg,gh,gi,gl,gm,gn,gp,gq,gr,gs,gt,gu,gw,gy,hk,hm,hn,hr,ht,hu,id,ie,il,im,in,io,iq,ir,is,it,je,jm,jo,jp,ke,kg,kh,ki,km,kn,kp,kr,kw,ky,kz,la,lb,lc,li,lk,lr,ls,lt,lu,lv,ly,ma,mc,md,me,mf,mg,mh,mk,ml,mm,mn,mo,mp,mq,mr,ms,mt,mu,mv,mw,mx,my,mz,na,nc,ne,nf,ng,ni,nl,no,np,nr,nu,nz,om,pa,pe,pf,pg,ph,pk,pl,pm,pn,pr,ps,pt,pw,py,qa,re,ro,rs,ru,rw,sa,sb,sc,sd,se,sg,sh,si,sj,sk,sl,sm,sn,so,sr,st,sv,sx,sy,sz,tc,td,tf,tg,th,tj,tk,tl,tm,tn,to,tr,tt,tv,tw,tz,ua,ug,um,us,uy,uz,va,vc,ve,vg,vi,vn,vu,wf,ws,xx,ye,yt,za,zm,zw]
  +        datacenters => [ad,ae,af,ag,ai,al,am,an,ao,ap,aq,ar,as,at,au,aw,ax,az,ba,bb,bd,be,bf,bg,bh,bi,bj,bl,bm,bn,bo,br,bs,bt,bv,bw,by,bz,ca,cc,cd,cf,cg,ch,ci,ck,cl,cm,cn,co,cr,cu,cv,cx,cy,cz,de,dj,dk,dm,do,dz,ec,ee,eg,eh,er,es,et,eu,fi,fj,fk,fm,fo,fr,fx,ga,gb,gd,ge,gf,gg,gh,gi,gl,gm,gn,gp,gq,gr,gs,gt,gu,gw,gy,hk,hm,hn,hr,ht,hu,id,ie,il,im,in,io,iq,ir,is,it,je,jm,jo,jp,ke,kg,kh,ki,km,kn,kp,kr,kw,ky,kz,la,lb,lc,li,lk,lr,ls,lt,lu,lv,ly,ma,mc,md,me,mf,mg,mh,mk,ml,mm,mn,mo,mp,mq,mr,ms,mt,mu,mv,mw,mx,my,mz,na,nc,ne,nf,ng,ni,nl,no,np,nr,nu,nz,om,pa,pe,pf,pg,ph,pk,pl,pm,pn,pr,ps,pt,pw,py,qa,re,ro,rs,ru,rw,sa,sb,sc,sd,se,sg,sh,si,sj,sk,sl,sm,sn,so,sr,st,sv,sy,sz,tc,td,tf,tg,th,tj,tk,tl,tm,tn,to,tr,tt,tv,tw,tz,ua,ug,um,us,uy,uz,va,vc,ve,vg,vi,vn,vu,wf,ws,xx,ye,yt,za,zm,zw]
           map => {
             default => [xx]
             AF => {
  
positive.code:           sr => sr.tile.openstreetmap.org.
            st => st.tile.openstreetmap.org.
            sv => sv.tile.openstreetmap.org.
            sx => sx.tile.openstreetmap.org.
            sy => sy.tile.openstreetmap.org.
            sz => sz.tile.openstreetmap.org.
            tc => tc.tile.openstreetmap.org.
  
negative.code:           er => er.tile.openstreetmap.org.
            es => es.tile.openstreetmap.org.
            et => et.tile.openstreetmap.org.
            eu => eu.tile.openstreetmap.org.
            fi => fi.tile.openstreetmap.org.
            fj => fj.tile.openstreetmap.org.
            fk => fk.tile.openstreetmap.org.
            fm => fm.tile.openstreetmap.org.
            fo => fo.tile.openstreetmap.org.
            fr => fr.tile.openstreetmap.org.
            fx => fx.tile.openstreetmap.org.
            ga => ga.tile.openstreetmap.org.
            gb => gb.tile.openstreetmap.org.
            gd => gd.tile.openstreetmap.org.
  