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Merged
dsekihat merged 1 commit into from
Jun 17, 2026
+106 −109
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[PWGEM/Dilepton] update createTTP #16710

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215 changes: 106 additions & 109 deletions PWGEM/Dilepton/Tasks/createTTP.cxx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

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[name/workflow-file] 

Name of a workflow file must match the name of the main struct in it (without the PWG prefix). (Class implementation files should be in "Core" directories.)

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[name/o2-task] 

Specify task name only when it cannot be derived from the struct name. Only append to the default name.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
Expand Down Expand Up @@ -60,6 +60,7 @@
#include <cstdint>
#include <iterator>
#include <optional>
#include <ranges>
#include <string>
#include <string_view>
#include <type_traits>
Expand All @@ -75,7 +76,7 @@

struct createTTP {
// Configurables
Configurable<std::string> ccdburl{"ccdb-url", "http://alice-ccdb.cern.ch", "url of the ccdb repository"};

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[name/configurable] 

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)
Configurable<std::string> grpPath{"grpPath", "GLO/GRP/GRP", "Path of the grp file"};
Configurable<std::string> grpmagPath{"grpmagPath", "GLO/Config/GRPMagField", "CCDB path of the GRPMagField object"};
Configurable<std::string> lutPath{"lutPath", "GLO/Param/MatLUT", "Path of the Lut parametrization"};
Expand Down Expand Up @@ -471,6 +472,19 @@
float pt{0};
float eta{0};
float phi{0};
int8_t sign{0};
float tpcInnerParam{0};
float tpcNSigmaEl{999};

float dcaXY{999};
float dcaZ{999};
float dcaXYinSigma{999};
float dcaZinSigma{999};

bool passTrackTag{false};
bool passTrackProbe{false};
bool passPIDTag{false};
bool passPIDProbe{false};
int globalIndex{-1};
int mcParticleId{-1};
};
Expand All @@ -496,11 +510,11 @@

SliceCache cache;
Preslice<aod::TracksIU> perCol = o2::aod::track::collisionId;
Partition<FilteredMyTracks> posTracks = o2::aod::track::signed1Pt > 0.f;
Partition<FilteredMyTracks> negTracks = o2::aod::track::signed1Pt < 0.f;
// Partition<FilteredMyTracks> posTracks = o2::aod::track::signed1Pt > 0.f;
// Partition<FilteredMyTracks> negTracks = o2::aod::track::signed1Pt < 0.f;

template <typename TBCs, typename TCollisions, typename TTracks>
void runTAP(TBCs const&, TCollisions const& collisions, TTracks const&)
void runTAP(TBCs const&, TCollisions const& collisions, TTracks const& tracks)
{
for (const auto& collision : collisions) {
auto bc = collision.template bc_as<TBCs>();
Expand All @@ -520,153 +534,137 @@
mVtx.setPos({collision.posX(), collision.posY(), collision.posZ()});
mVtx.setCov(collision.covXX(), collision.covXY(), collision.covYY(), collision.covXZ(), collision.covYZ(), collision.covZZ());

auto posTracks_per_coll = posTracks->sliceByCached(o2::aod::track::collisionId, collision.globalIndex(), cache);
auto negTracks_per_coll = negTracks->sliceByCached(o2::aod::track::collisionId, collision.globalIndex(), cache);
// LOGF(info, "posTracks_per_coll.size() = %d, negTracks_per_coll.size() = %d", posTracks_per_coll.size(), negTracks_per_coll.size());
// auto posTracks_per_coll = posTracks->sliceByCached(o2::aod::track::collisionId, collision.globalIndex(), cache);
// auto negTracks_per_coll = negTracks->sliceByCached(o2::aod::track::collisionId, collision.globalIndex(), cache);
// // LOGF(info, "posTracks_per_coll.size() = %d, negTracks_per_coll.size() = %d", posTracks_per_coll.size(), negTracks_per_coll.size());
// if (posTracks_per_coll.size() + negTracks_per_coll.size() < 2) {
// continue;
// }

auto tracks_per_coll = tracks.sliceBy(perCol, collision.globalIndex());
if (tracks_per_coll.size() < 2) { // at least 2 tracks are necessary to make a pair.

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continue;
}

o2::dataformats::DCA mDcaInfoCov;
for (const auto& tag : posTracks_per_coll) { // positron is tag
std::vector<lepton> posLeptons;
std::vector<lepton> negLeptons;
posLeptons.reserve(tracks_per_coll.size());
negLeptons.reserve(tracks_per_coll.size());

for (const auto& track : tracks_per_coll) {
mDcaInfoCov.set(999, 999, 999, 999, 999);
auto tagParCov = getTrackParCov(tag);
tagParCov.setPID(o2::track::PID::Electron);
bool isPropOK = o2::base::Propagator::Instance()->propagateToDCABxByBz(mVtx, tagParCov, 2.f, matCorr, &mDcaInfoCov);
auto trackParCov = getTrackParCov(track);
trackParCov.setPID(o2::track::PID::Electron);
bool isPropOK = o2::base::Propagator::Instance()->propagateToDCABxByBz(mVtx, trackParCov, 2.f, matCorr, &mDcaInfoCov);
if (!isPropOK) {
continue;
}
if (!isTag(tag, tagParCov.getPt(), tagParCov.getEta(), mDcaInfoCov.getY(), mDcaInfoCov.getZ(), tagParCov.getSigmaY2(), tagParCov.getSigmaZ2(), tagParCov.getSigmaZY()) || !isTagElectron(tag)) {
continue;
}

for (const auto& probe : negTracks_per_coll) { // electron is probe.
mDcaInfoCov.set(999, 999, 999, 999, 999);
auto probeParCov = getTrackParCov(probe);
probeParCov.setPID(o2::track::PID::Electron);
bool isPropOK = o2::base::Propagator::Instance()->propagateToDCABxByBz(mVtx, probeParCov, 2.f, matCorr, &mDcaInfoCov);
if (!isPropOK) {
continue;
}
if (!isProbe(probe, probeParCov.getPt(), probeParCov.getEta(), mDcaInfoCov.getY(), mDcaInfoCov.getZ()) || !isProbeElectron(probe)) {
continue;
lepton tmp;
tmp.pt = trackParCov.getPt();
tmp.eta = trackParCov.getEta();
tmp.phi = RecoDecay::constrainAngle(trackParCov.getPhi(), 0, 1U);
tmp.sign = track.sign();
tmp.tpcInnerParam = track.tpcInnerParam();
tmp.tpcNSigmaEl = track.tpcNSigmaEl();
tmp.dcaXY = mDcaInfoCov.getY() * 1e+4; // in um
tmp.dcaZ = mDcaInfoCov.getZ() * 1e+4; // in um
tmp.dcaXYinSigma = mDcaInfoCov.getY() / std::sqrt(trackParCov.getSigmaY2());
tmp.dcaZinSigma = mDcaInfoCov.getZ() / std::sqrt(trackParCov.getSigmaZ2());
tmp.passTrackTag = isTag(track, trackParCov.getPt(), trackParCov.getEta(), mDcaInfoCov.getY(), mDcaInfoCov.getZ(), trackParCov.getSigmaY2(), trackParCov.getSigmaZ2(), trackParCov.getSigmaZY());
tmp.passTrackProbe = isProbe(track, trackParCov.getPt(), trackParCov.getEta(), mDcaInfoCov.getY(), mDcaInfoCov.getZ());
tmp.passPIDTag = isTagElectron(track);
tmp.passPIDProbe = isProbeElectron(track);
tmp.globalIndex = track.globalIndex();
tmp.mcParticleId = -1;

if (tmp.passTrackTag || tmp.passTrackProbe) {
if (track.sign() > 0) {
posLeptons.emplace_back(tmp);
} else {
negLeptons.emplace_back(tmp);
}
}
} // end of track loop

auto tagPositrons = std::views::filter(posLeptons, [](lepton t) { return t.passTrackTag == true && t.passPIDTag == true; });
auto tagElectrons = std::views::filter(negLeptons, [](lepton t) { return t.passTrackTag == true && t.passPIDTag == true; });
auto probePositrons = std::views::filter(posLeptons, [](lepton t) { return t.passTrackProbe == true && t.passPIDProbe == true; });
auto probeElectrons = std::views::filter(negLeptons, [](lepton t) { return t.passTrackProbe == true && t.passPIDProbe == true; });

ROOT::Math::PtEtaPhiMVector v1(tagParCov.getPt(), tagParCov.getEta(), RecoDecay::constrainAngle(tagParCov.getPhi(), 0, 1U), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(probeParCov.getPt(), probeParCov.getEta(), RecoDecay::constrainAngle(probeParCov.getPhi(), 0, 1U), o2::constants::physics::MassElectron);
for (const auto& tag : tagPositrons) {
for (const auto& probe : probeElectrons) {
ROOT::Math::PtEtaPhiMVector v1(tag.pt, tag.eta, RecoDecay::constrainAngle(tag.phi, 0, 1U), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(probe.pt, probe.eta, RecoDecay::constrainAngle(probe.phi, 0, 1U), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
float mee = v12.M();
float phiv = o2::aod::pwgem::dilepton::utils::pairutil::getPhivPair(v1.Px(), v1.Py(), v1.Pz(), v2.Px(), v2.Py(), v2.Pz(), tag.sign(), probe.sign(), d_bz);
float phiv = o2::aod::pwgem::dilepton::utils::pairutil::getPhivPair(v1.Px(), v1.Py(), v1.Pz(), v2.Px(), v2.Py(), v2.Pz(), tag.sign, probe.sign, d_bz);
fRegistry.fill(HIST("TAP/hMvsPhiV"), phiv, mee);

if ((pairCut.minMee < mee && mee < pairCut.maxMee) && (pairCut.minPhiV < phiv && phiv < pairCut.maxPhiV)) {
fRegistry.fill(HIST("Track/hs"), probeParCov.getPt(), probeParCov.getEta(), RecoDecay::constrainAngle(probeParCov.getPhi(), 0, 1U), probe.sign(), mDcaInfoCov.getY() * 1e+4, mDcaInfoCov.getZ() * 1e+4, mDcaInfoCov.getY() / std::sqrt(probeParCov.getSigmaY2()), mDcaInfoCov.getZ() / std::sqrt(probeParCov.getSigmaZ2()));
fRegistry.fill(HIST("Track/hTPCNsigmaEl"), probe.tpcInnerParam(), probe.tpcNSigmaEl());
fRegistry.fill(HIST("Track/hs"), probe.pt, probe.eta, RecoDecay::constrainAngle(probe.phi, 0, 1U), probe.sign, probe.dcaXY, probe.dcaZ, probe.dcaXYinSigma, probe.dcaZinSigma);
fRegistry.fill(HIST("Track/hTPCNsigmaEl"), probe.tpcInnerParam, probe.tpcNSigmaEl);
}

} // end of electron loop
} // end of positron loop

for (const auto& tag : negTracks_per_coll) { // electron is tag
mDcaInfoCov.set(999, 999, 999, 999, 999);
auto tagParCov = getTrackParCov(tag);
tagParCov.setPID(o2::track::PID::Electron);
bool isPropOK = o2::base::Propagator::Instance()->propagateToDCABxByBz(mVtx, tagParCov, 2.f, matCorr, &mDcaInfoCov);
if (!isPropOK) {
continue;
}
if (!isTag(tag, tagParCov.getPt(), tagParCov.getEta(), mDcaInfoCov.getY(), mDcaInfoCov.getZ(), tagParCov.getSigmaY2(), tagParCov.getSigmaZ2(), tagParCov.getSigmaZY()) || !isTagElectron(tag)) {
continue;
}

for (const auto& probe : posTracks_per_coll) { // positron is probe.
mDcaInfoCov.set(999, 999, 999, 999, 999);
auto probeParCov = getTrackParCov(probe);
probeParCov.setPID(o2::track::PID::Electron);
bool isPropOK = o2::base::Propagator::Instance()->propagateToDCABxByBz(mVtx, probeParCov, 2.f, matCorr, &mDcaInfoCov);
if (!isPropOK) {
continue;
}
if (!isProbe(probe, probeParCov.getPt(), probeParCov.getEta(), mDcaInfoCov.getY(), mDcaInfoCov.getZ()) || !isProbeElectron(probe)) {
continue;
}

ROOT::Math::PtEtaPhiMVector v1(tagParCov.getPt(), tagParCov.getEta(), RecoDecay::constrainAngle(tagParCov.getPhi(), 0, 1U), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(probeParCov.getPt(), probeParCov.getEta(), RecoDecay::constrainAngle(probeParCov.getPhi(), 0, 1U), o2::constants::physics::MassElectron);
for (const auto& tag : tagElectrons) {
for (const auto& probe : probePositrons) {
ROOT::Math::PtEtaPhiMVector v1(tag.pt, tag.eta, RecoDecay::constrainAngle(tag.phi, 0, 1U), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(probe.pt, probe.eta, RecoDecay::constrainAngle(probe.phi, 0, 1U), o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
float mee = v12.M();
float phiv = o2::aod::pwgem::dilepton::utils::pairutil::getPhivPair(v1.Px(), v1.Py(), v1.Pz(), v2.Px(), v2.Py(), v2.Pz(), tag.sign(), probe.sign(), d_bz);
float phiv = o2::aod::pwgem::dilepton::utils::pairutil::getPhivPair(v1.Px(), v1.Py(), v1.Pz(), v2.Px(), v2.Py(), v2.Pz(), tag.sign, probe.sign, d_bz);
fRegistry.fill(HIST("TAP/hMvsPhiV"), phiv, mee);

if ((pairCut.minMee < mee && mee < pairCut.maxMee) && (pairCut.minPhiV < phiv && phiv < pairCut.maxPhiV)) {
fRegistry.fill(HIST("Track/hs"), probeParCov.getPt(), probeParCov.getEta(), RecoDecay::constrainAngle(probeParCov.getPhi(), 0, 1U), probe.sign(), mDcaInfoCov.getY() * 1e+4, mDcaInfoCov.getZ() * 1e+4, mDcaInfoCov.getY() / std::sqrt(probeParCov.getSigmaY2()), mDcaInfoCov.getZ() / std::sqrt(probeParCov.getSigmaZ2()));
fRegistry.fill(HIST("Track/hTPCNsigmaEl"), probe.tpcInnerParam(), probe.tpcNSigmaEl());
fRegistry.fill(HIST("Track/hs"), probe.pt, probe.eta, RecoDecay::constrainAngle(probe.phi, 0, 1U), probe.sign, probe.dcaXY, probe.dcaZ, probe.dcaXYinSigma, probe.dcaZinSigma);
fRegistry.fill(HIST("Track/hTPCNsigmaEl"), probe.tpcInnerParam, probe.tpcNSigmaEl);
}

} // end of positron loop
} // end of electron loop

// for VM peak analyses
std::vector<lepton> posLeptons;
std::vector<lepton> negLeptons;
posLeptons.reserve(posTracks_per_coll.size());
negLeptons.reserve(negTracks_per_coll.size());

for (const auto& track : posTracks_per_coll) {
mDcaInfoCov.set(999, 999, 999, 999, 999);
auto trackParCov = getTrackParCov(track);
trackParCov.setPID(o2::track::PID::Electron);
bool isPropOK = o2::base::Propagator::Instance()->propagateToDCABxByBz(mVtx, trackParCov, 2.f, matCorr, &mDcaInfoCov);
if (!isPropOK) {
continue;
}
if (isProbe(track, trackParCov.getPt(), trackParCov.getEta(), mDcaInfoCov.getY(), mDcaInfoCov.getZ()) && isTagElectron(track)) {
lepton tmp;
tmp.pt = trackParCov.getPt();
tmp.eta = trackParCov.getEta();
tmp.phi = RecoDecay::constrainAngle(trackParCov.getPhi(), 0, 1U);
tmp.globalIndex = track.globalIndex();
tmp.mcParticleId = -1;
posLeptons.emplace_back(tmp);
}
} // end of positron loop

for (const auto& track : negTracks_per_coll) {
mDcaInfoCov.set(999, 999, 999, 999, 999);
auto trackParCov = getTrackParCov(track);
trackParCov.setPID(o2::track::PID::Electron);
bool isPropOK = o2::base::Propagator::Instance()->propagateToDCABxByBz(mVtx, trackParCov, 2.f, matCorr, &mDcaInfoCov);
if (!isPropOK) {
continue;
}
if (isProbe(track, trackParCov.getPt(), trackParCov.getEta(), mDcaInfoCov.getY(), mDcaInfoCov.getZ()) && isTagElectron(track)) {
lepton tmp;
tmp.pt = trackParCov.getPt();
tmp.eta = trackParCov.getEta();
tmp.phi = RecoDecay::constrainAngle(trackParCov.getPhi(), 0, 1U);
tmp.globalIndex = track.globalIndex();
tmp.mcParticleId = -1;
negLeptons.emplace_back(tmp);
}
} // end of electron loop
auto probePositronsVM = std::views::filter(posLeptons, [](lepton t) { return t.passTrackProbe == true && t.passPIDTag == true; });
auto probeElectronsVM = std::views::filter(negLeptons, [](lepton t) { return t.passTrackProbe == true && t.passPIDTag == true; });

// for VM peak analyses
std::vector<int> trackIdsFromPi0;
trackIdsFromPi0.reserve(posLeptons.size() + negLeptons.size());

for (const auto& t1 : posLeptons) {
for (const auto& t2 : negLeptons) {
for (const auto& t1 : probePositronsVM) {
for (const auto& t2 : probeElectronsVM) {
ROOT::Math::PtEtaPhiMVector v1(t1.pt, t1.eta, t1.phi, o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(t2.pt, t2.eta, t2.phi, o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
if (v12.M() < pfGroup.maxMee) {
trackIdsFromPi0.emplace_back(t1.globalIndex);
trackIdsFromPi0.emplace_back(t2.globalIndex);
}
} // end of electron loop
} // end of positron loop

for (const auto& t1 : probePositronsVM) {
for (const auto& t2 : probeElectronsVM) {
if (std::find(trackIdsFromPi0.begin(), trackIdsFromPi0.end(), t1.globalIndex) != trackIdsFromPi0.end()) {
continue;
}
if (std::find(trackIdsFromPi0.begin(), trackIdsFromPi0.end(), t2.globalIndex) != trackIdsFromPi0.end()) {
continue;
}
ROOT::Math::PtEtaPhiMVector v1(t1.pt, t1.eta, t1.phi, o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v2(t2.pt, t2.eta, t2.phi, o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
fRegistry.fill(HIST("Pair/uls/hMvsPt"), v12.M(), v12.Pt());
} // end of electron loop
} // end of positron loop

for (size_t i = 0; i < posLeptons.size(); i++) {
size_t nposVM = static_cast<size_t>(std::ranges::distance(probePositronsVM));
size_t neleVM = static_cast<size_t>(std::ranges::distance(probeElectronsVM));

for (size_t i = 0; i < nposVM; i++) {
auto t1 = posLeptons[i];
for (size_t j = i + 1; j < posLeptons.size(); j++) {
for (size_t j = i + 1; j < nposVM; j++) {
auto t2 = posLeptons[j];
if (std::find(trackIdsFromPi0.begin(), trackIdsFromPi0.end(), t1.globalIndex) != trackIdsFromPi0.end()) {
continue;
Expand All @@ -678,13 +676,12 @@
ROOT::Math::PtEtaPhiMVector v2(t2.pt, t2.eta, t2.phi, o2::constants::physics::MassElectron);
ROOT::Math::PtEtaPhiMVector v12 = v1 + v2;
fRegistry.fill(HIST("Pair/lspp/hMvsPt"), v12.M(), v12.Pt());

} // end of positron loop
} // end of positron loop

for (size_t i = 0; i < negLeptons.size(); i++) {
for (size_t i = 0; i < neleVM; i++) {
auto t1 = negLeptons[i];
for (size_t j = i + 1; j < negLeptons.size(); j++) {
for (size_t j = i + 1; j < neleVM; j++) {
auto t2 = negLeptons[j];
if (std::find(trackIdsFromPi0.begin(), trackIdsFromPi0.end(), t1.globalIndex) != trackIdsFromPi0.end()) {
continue;
Expand Down Expand Up @@ -758,7 +755,7 @@
}
auto mcParticle = track.template mcParticle_as<aod::McParticles>();
auto mcCollision = mcParticle.template mcCollision_as<aod::McCollisions>();
if (std::abs(mcParticle.pdgCode()) != 11) {

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[magic-number] 

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

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[pdg/explicit-code] 

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.
continue;
}
if (!(mcParticle.isPhysicalPrimary() || mcParticle.producedByGenerator())) {
Expand Down Expand Up @@ -814,19 +811,19 @@
if (omegaId > 0) {
auto mcMother = mcParticles.rawIteratorAt(omegaId);
int ndau = mcMother.daughtersIds()[1] - mcMother.daughtersIds()[0] + 1;
if (ndau == 2) {

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[magic-number] 

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fRegistry.fill(HIST("Pair/hMvsPt_omega"), v12.M(), v12.Pt());
}
} else if (phiId > 0) {
auto mcMother = mcParticles.rawIteratorAt(phiId);
int ndau = mcMother.daughtersIds()[1] - mcMother.daughtersIds()[0] + 1;
if (ndau == 2) {

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Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.
fRegistry.fill(HIST("Pair/hMvsPt_phi"), v12.M(), v12.Pt());
}
} else if (jpsiId > 0) {
auto mcMother = mcParticles.rawIteratorAt(jpsiId);
int ndau = mcMother.daughtersIds()[1] - mcMother.daughtersIds()[0] + 1;
if (ndau == 2) {

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fRegistry.fill(HIST("Pair/hMvsPt_jpsi"), v12.M(), v12.Pt());
}
}
Expand All @@ -846,5 +843,5 @@
WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
{
return WorkflowSpec{
adaptAnalysisTask<createTTP>(cfgc, TaskName{"create-ttp"})};

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[name/o2-task] 

Device names create-ttp and create-t-t-p generated from the specified task name create-ttp and from the struct name createTTP, respectively, differ in hyphenation. Consider fixing capitalisation of the struct name to CreateTtp and removing TaskName.
}
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