--- a/test/callback_suite_aggrs/design.txt	Wed Apr 13 15:16:56 2022 +0200
+++ b/test/callback_suite_aggrs/design.txt	Wed Apr 13 15:55:50 2022 +0200
@@ -132,6 +132,7 @@
 {iiii}ijf)f
 s{ii}ijf)s
 ijf){ii}
+IBiCl{IsIis}LfjJ)S
 fcf{sppffp}fpp{fpdls}lpj{ifjdi}j{jjf}){s}
 {f}ssdf{}){{cpcfjcfjddispli}ps}
 ci{fsppcfcp}l{p}{iciddsp}{{}scpdcspcdlldjfijlpppdii}{fpdfddsldjccpjd}clf){}
@@ -181,3 +182,38 @@
 {pp}d{d{il}{dlcplcpflcsf}lfpcfillfii}c{}p{}{}fll)v
 cp{ddsfsfs{pjl}fcpid{ffilli}pplslj{slpicdcfcppdps}j}fspc{}idpfj)v
 ps{fcddipp}{}psdd)v
+Jlf<C<Lld[9]IL>[13]ffc[5]{ifSsIslpSpij}><JIisSfiBdBcd>Bj{fcI}Ccs<iifdBfffllBL>lj)j
+IdjcBfCplL<dfpjpc<c<CSJpsf[3]SIdC[5]jc>pJls<LpipS>S{i}dB<CcBd>>Sf<<L>>C>)v
+CiCcc{Jcf}BjJcj{lIlCfc}Bc)B
+<LS>iLsC<IlciJ<I[3]SfBjCL<JCSIpjpJBcdJ>B>J><Cd>C{IpCCfsijCiC[16]c}dSL)I
+Bjcl{lif}dLf){ijdBJSfLs[9]}
+csB{<<dcSLcLdj><BBSspisCJjf>pILdp>IJipJiLfsis}<IppLisJdSp<dcpjCiISIIli><CJ>>fs{sp}sC)B
+{dsLCIIISl[11]lcl}l{plcpICJpcilJ}BSSB<CBpLBcjLp[2]Bsj>CiC{IJiJlLILfcss}f)i
+Ld<idCsj>ildi<IjIIpc[6]iBcpIC[12]>CLpJLB)J
+jsilfc{pC}fllBS)j
+Bs<sifsc<pJdsjL>ifc{JiiScdSCc}pI><cjcJJCsfl>C{spJIBlCllpCS}j{dslI<CjJ>f}<jBBljpJc{pB}JSS>fBi)v
+Sp<LIcLlcilsjcs>dJI{fCj}lBiI)j
+sJLSJs<LdlLBfcLsJLc><BiLlJJl{SCd}pBjp>)s
+C<pLCs{LjISd[15]JfCSpSi}dsBC{sfsLJLLlJspl}Ic>ldSSfJd{Lci}Ll)c
+cBssfJ{j<lJjpfCC>}cB)c
+CLpflCf<cdlc[13]fB>Lpc)J
+Ljsl{}fl<SCjc[14]>LjSjd)v
+pCCIlifS{dL}dC)l
+jsidL{flcjj}JI{SJCIdpSfBjc}<jLppijcjLICi><splSf[4]lSjcpli>)d
+l{{jSpi}}CpLdffI{lS}IS)s
+LjCjl{B<jSLsdCsisIfl>}{d[3]sdjsj<BJiiBddCSijJ>[10]iB<ics>II}lSdBpCj{jpccsJiBB<pLsL>jL})C
+J<Sf>Ls<jSpCfppBcs<cCsiC<Cd[13]sIJfLiscLj>Iij{BLJjLsCCj}p>>SLl{ffS}pipCS)S
+dS<{JI[7]iccd}BC<sfldSpL[8]liISf>dlJic{}jS>B<Jp[1]cflBsBdCil>li{IBC}cfcIs)d
+c<d><SlsICds<dsdjS[15]CLliilC>j<SBdsLflBCCJs>Cd>SpBC<Iisdps{lI}SIidB>Sc)p
+SBJIp{jIlCp{fl}Ic<dd>dps}{d<SjdCSfBdfIlL>}j){BlJ[8]LljSfS}
+L<>sIJJ{JL}jcSS<l>jf)<lpBILfcSIsl>
+LSjjcs{s[16]ilJcccBsBl[14]I}{id}fCIplC)j
+<<CpIcpjdpjIdS>i<spiLfiJCcIii>Jilcs<>diB>{BjfCiSLsdfIJ}IjJ<BsfsidfsJBc>Lp<{I[2]f}clS>C)l
+SiSIl{IcfS}LLcissjs)d
+pfpfBI{BLjCsiciLBLj}i<cc<pifpijfSCc[16]Sj>C>IpsSdC)<pLICi>
+sflpii<fpIplSBBBpC<LsLd{pI}jdpBIB<>>>c)s
+LiSCCjLi{JicLSfJfcIcc}<sfd[1]J<slcIIIfpcI<pLdSfSfjsssc>p>i><C[7]df[4]IlifJBcCp>s)j
+iJdiBlL{cid})i
+LLdCJ<IsJJBiLfiCSp>{Iip}sJ)v
+CLjjI{LS}<ll[6]>BcJ{SlLLiLICddSf}l)J
+SiIBld<C[11]pdpdcLLjLCf>Cd)L