diff --git a/examples/deluxe-interface/deluxe-interface.cpp b/examples/deluxe-interface/deluxe-interface.cpp
index 82621ac..c742cce 100755
--- a/examples/deluxe-interface/deluxe-interface.cpp
+++ b/examples/deluxe-interface/deluxe-interface.cpp
@@ -1,272 +1,320 @@
 //===-- examples/deluxe-interface/deluxe-interface.cpp ----------*- C++ -*-===//
 //
 //                                 The RoSA Framework
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file examples/deluxe-interface/deluxe-interface.cpp
 ///
 /// \author David Juhasz (david.juhasz@tuwien.ac.at)
 ///
 /// \date 2017-2019
 ///
 /// \brief A simple example on the \c rosa::deluxe::DeluxeContext and related
 /// classes.
 //===----------------------------------------------------------------------===//
 
 #include "rosa/config/version.h"
 
 #include "rosa/deluxe/DeluxeContext.hpp"
 
 #include <algorithm>
 #include <cmath>
 #include <vector>
 
 using namespace rosa;
 using namespace rosa::deluxe;
 using namespace rosa::terminal;
 
 /// How many cycles of simulation to perform.
 const size_t NumberOfSimulationCycles = 16;
 
 int main(void) {
   LOG_INFO_STREAM << '\n'
                   << library_string() << " -- " << Color::Red
                   << "deluxe-interface example" << Color::Default << '\n';
 
   std::unique_ptr<DeluxeContext> C = DeluxeContext::create("Deluxe");
 
   //
   // Create deluxe sensors.
   //
   LOG_INFO("Creating sensors.");
 
   // All sensors are created without defining a normal generator function, but
   // with the default value of the last argument. That, however, requires the
   // data type to be explicitly defined. This is good for simulation only.
 
   // The first and second sensors do not receive master-input.
   AgentHandle BoolSensor = C->createSensor<bool>("BoolSensor");
   AgentHandle IntSensor = C->createSensor<int32_t>("IntSensor");
 
   // This sensor receives master-input and dumps it to \c LOG_INFO_STREAM.
   const std::string FloatSensorName = "FloatSensor";
   AgentHandle FloatSensor = C->createSensor<uint32_t, float>(
       FloatSensorName, [&FloatSensorName](std::pair<uint32_t, bool> I) {
         LOG_INFO_STREAM << "\n******\n"
                         << FloatSensorName
                         << " master-input " << (I.second ? "<New>" : "<Old>")
                         << " value: " << I.first << "\n******\n";
       });
 
+  // This sensor do not receive master-input but produces tuples.
+  using TupleType = DeluxeTuple<float, float>;
+  AgentHandle TupleSensor = C->createSensor<TupleType>("TupleSensor");
+
   //
   // Create low-level deluxe agents with \c createLowLevelAgent.
   //
   LOG_INFO("Creating low-level agents.");
 
   // All agents below dump their received values to \c LOG_INFO_STREAM on each
   // triggering.
 
   // This agent does not receive master-input and does not produce
   // master-output. It results in the value it received.
   const std::string BoolAgentName = "BoolAgent";
   using BoolResult = Optional<bool>;
   using BoolHandler = std::function<BoolResult(std::pair<bool, bool>)>;
   AgentHandle BoolAgent = C->createAgent(
       BoolAgentName,
       BoolHandler([&BoolAgentName](std::pair<bool, bool> I) -> BoolResult {
         LOG_INFO_STREAM << "\n******\n"
                         << BoolAgentName << " "
                         << (I.second ? "<New>" : "<Old>")
                         << " value: " << I.first << "\n******\n";
         return {I.first};
       }));
 
   // This agent receives master-input but does not produce master-output. The
   // agent maintains a state in \c IntAgentOffset. The master-input handler
   // updates \c IntAgentOffset according to each received (new) value from its
   // master. The slave-input handler results in the sum of the received value
   // and the actual value of \c IntAgentOffset.
   const std::string IntAgentName = "IntAgent";
   using IntMasterHandler = std::function<void(std::pair<uint32_t, bool>)>;
   using IntResult = Optional<int32_t>;
   using IntHandler = std::function<IntResult(std::pair<int32_t, bool>)>;
   uint32_t IntAgentOffset = 0;
   AgentHandle IntAgent = C->createAgent(
       IntAgentName,
       // Master-input handler.
       IntMasterHandler([&IntAgentName,
                         &IntAgentOffset](std::pair<uint32_t, bool> I) {
         LOG_INFO_STREAM << "\n******\n"
                         << IntAgentName
                         << " master-input " << (I.second ? "<New>" : "<Old>")
                         << " value: " << I.first << "\n******\n";
         if (I.second) {
           IntAgentOffset = I.first;
         }
       }),
       // Slave-input handler.
       IntHandler([&IntAgentName,
                   &IntAgentOffset](std::pair<int32_t, bool> I) -> IntResult {
         LOG_INFO_STREAM << "\n******\n"
                         << IntAgentName << " " << (I.second ? "<New>" : "<Old>")
                         << " value: " << I.first << "\n******\n";
         return {I.first + IntAgentOffset};
       }));
 
   // This agent receives master-input and produces master-output. The
   // master-input handler propagaates each received (new) value to its slave as
   // master-output. The slave-input handler results in the value it received and
   // produces no actual master-output.
   const std::string FloatAgentName = "FloatAgent";
   using FloatMasterResult = std::tuple<Optional<uint32_t>>;
   using FloatMasterHandler =
       std::function<FloatMasterResult(std::pair<uint32_t, bool>)>;
   using FloatResult = std::tuple<Optional<float>, Optional<uint32_t>>;
   using FloatHandler = std::function<FloatResult(std::pair<float, bool>)>;
   AgentHandle FloatAgent = C->createAgent(
       FloatAgentName,
       // Master-input handler.
       FloatMasterHandler([&FloatAgentName](
                              std::pair<uint32_t, bool> I) -> FloatMasterResult {
         LOG_INFO_STREAM << "\n******\n"
                         << FloatAgentName
                         << " master-input " << (I.second ? "<New>" : "<Old>")
                         << " value: " << I.first << "\n******\n";
         const auto Output =
             I.second ? Optional<uint32_t>(I.first) : Optional<uint32_t>();
         return {Output};
       }),
       // Slave-input handler.
       FloatHandler([&FloatAgentName](std::pair<float, bool> I) -> FloatResult {
         LOG_INFO_STREAM << "\n******\n"
                         << FloatAgentName << " "
                         << (I.second ? "<New>" : "<Old>")
                         << " value: " << I.first << "\n******\n";
         return {{I.first}, {}};
       }));
 
+  // This agent does not receive master-input and does not produce
+  // master-output. It results in the sum of the values it receives in a tuple.
+  const std::string TupleAgentName = "TupleAgent";
+  using TupleSumResult = Optional<DeluxeTuple<double>>;
+  using TupleHandler =
+      std::function<TupleSumResult(std::pair<TupleType, bool>)>;
+  AgentHandle TupleAgent = C->createAgent(
+      TupleAgentName,
+      TupleHandler(
+          [&TupleAgentName](std::pair<TupleType, bool> I) -> TupleSumResult {
+            LOG_INFO_STREAM << "\n******\n"
+                            << TupleAgentName << " "
+                            << (I.second ? "<New>" : "<Old>")
+                            << " value: " << I.first << "\n******\n";
+            return {std::get<0>(I.first) + std::get<1>(I.first)};
+          }));
+
   //
   // Connect sensors to low-level agents.
   //
   LOG_INFO("Connect sensors to their corresponding low-level agents.");
 
   C->connectSensor(BoolAgent, 0, BoolSensor, "Bool Sensor Channel");
   C->connectSensor(IntAgent, 0, IntSensor, "Int Sensor Channel");
   C->connectSensor(FloatAgent, 0, FloatSensor, "Float Sensor Channel");
+  C->connectSensor(TupleAgent, 0, TupleSensor, "Tuple Sensor Channel");
 
   //
   // Create a high-level deluxe agent.
   //
   LOG_INFO("Create high-level agent.");
 
+  using SingleDoubleOutputType = Optional<DeluxeTuple<double>>;
+  using SingleUInt32OutputType = Optional<DeluxeTuple<uint32_t>>;
+  using NoOutputType = Optional<EmptyDeluxeTuple>;
+
   // This agent does not receive master-input but produces master-output for its
   // slaves at positions `1` and `2` but not for that at position `0`. The agent
   // maintains a state in \c SumAgentState. The handler increments \c
   // SumAgentState upon each received (new) `true` value from its slave at
   // position `0`. Whenever \c SumAgentState has been updated, it is sent to the
   // slaves at positions `1` and `2`. The handler results in the sum of the
-  // values received from slaves at positions `1` and `2`.
-  using SumResult = std::tuple<Optional<double>, Optional<unit_t>,
-                               Optional<uint32_t>, Optional<uint32_t>>;
+  // values received from slaves at positions `1`, `2`, and `3`.
+  using SumResult =
+      std::tuple<SingleDoubleOutputType, NoOutputType, SingleUInt32OutputType,
+                 SingleUInt32OutputType, NoOutputType>;
   using SumHandler = std::function<SumResult(
-      std::pair<bool, bool>, std::pair<int32_t, bool>, std::pair<float, bool>)>;
+      std::pair<DeluxeTuple<bool>, bool>, std::pair<DeluxeTuple<int32_t>, bool>,
+      std::pair<DeluxeTuple<float>, bool>,
+      std::pair<DeluxeTuple<double>, bool>)>;
   uint32_t SumAgentState = 0;
   AgentHandle SumAgent = C->createAgent(
       "Sum Agent",
-      SumHandler([&SumAgentState](std::pair<bool, bool> I0,
-                                  std::pair<int32_t, bool> I1,
-                                  std::pair<float, bool> I2) -> SumResult {
+      SumHandler([&SumAgentState](
+                     std::pair<DeluxeTuple<bool>, bool> I0,
+                     std::pair<DeluxeTuple<int32_t>, bool> I1,
+                     std::pair<DeluxeTuple<float>, bool> I2,
+                     std::pair<DeluxeTuple<double>, bool> I3) -> SumResult {
+        const auto V0 = std::get<0>(I0.first);
+        const auto V1 = std::get<0>(I1.first);
+        const auto V2 = std::get<0>(I2.first);
+        const auto V3 = std::get<0>(I3.first);
         LOG_INFO_STREAM << "\n*******\nSum Agent triggered with values:\n"
                         << (I0.second ? "<New>" : "<Old>")
-                        << " bool value: " << I0.first << "\n"
+                        << " bool value: " << V0 << "\n"
                         << (I1.second ? "<New>" : "<Old>")
-                        << " int value: " << I1.first << "\n"
+                        << " int value: " << V1 << "\n"
                         << (I2.second ? "<New>" : "<Old>")
-                        << " float value: " << I2.first << "\n******\n";
-        if (I0.second && I0.first) {
+                        << " float value: " << V2 << "\n"
+                        << (I3.second ? "<New>" : "<Old>")
+                        << " double value: " << V3 << "\n******\n";
+        if (I0.second && V0) {
           ++SumAgentState;
         }
-        const auto MasterOutput = I0.second && I0.first
-                                      ? Optional<uint32_t>(SumAgentState)
-                                      : Optional<uint32_t>();
-        const auto Output = I1.first + I2.first;
-        return {{Output}, {}, {MasterOutput}, {MasterOutput}};
+        const SingleUInt32OutputType MasterOutput =
+            I0.second && V0
+                ? SingleUInt32OutputType(DeluxeTuple<uint32_t>(SumAgentState))
+                : SingleUInt32OutputType();
+        const DeluxeTuple<double> Output = {V1 + V2 + V3};
+        return {{Output}, {}, {MasterOutput}, {MasterOutput}, {}};
       }));
 
   //
   // Connect low-level agents to the high-level agent.
   //
   LOG_INFO("Connect low-level agents to the high-level agent.");
 
   C->connectAgents(SumAgent, 0, BoolAgent, "Bool Agent Channel");
   C->connectAgents(SumAgent, 1, IntAgent, "Int Agent Channel");
   C->connectAgents(SumAgent, 2, FloatAgent, "Float Agent Channel");
+  C->connectAgents(SumAgent, 3, TupleAgent, "Tuple Agent Channel");
 
   //
   // For simulation output, create a logger agent writing the output of the
   // high-level agent into a log stream.
   //
   LOG_INFO("Create a logger agent.");
 
   // The agent dumps each received (new) value to \c LOG_INFO_STREAM and
   // produces nothing; does not receive mater-input and does not produce
   // master-output.
   AgentHandle LoggerAgent =
       C->createAgent("Logger Agent",
                      std::function<Optional<unit_t>(std::pair<double, bool>)>(
                          [](std::pair<double, bool> Sum) -> Optional<unit_t> {
                            if (Sum.second) {
                              LOG_INFO_STREAM << "Result: " << Sum.first << "\n";
                            }
                            return {};
                          }));
 
   //
   // Connect the high-level agent to the logger agent.
   //
   LOG_INFO("Connect the high-level agent to the logger agent.");
 
   C->connectAgents(LoggerAgent, 0, SumAgent, "Sum Agent Channel");
 
   //
   // Do simulation.
   //
   LOG_INFO("Setting up and performing simulation.");
 
   //
   // Initialize deluxe context for simulation.
   //
 
   C->initializeSimulation();
 
   //
   // Create some vectors and register them for their corresponding sensors.
   //
 
   std::vector<bool> BoolValues(NumberOfSimulationCycles);
   std::generate(BoolValues.begin(), BoolValues.end(),
                 [i = 0](void) mutable -> bool { return (++i % 4) == 0; });
   C->registerSensorValues(BoolSensor, BoolValues.begin(), BoolValues.end());
 
   std::vector<int32_t> IntValues(NumberOfSimulationCycles);
   std::generate(IntValues.begin(), IntValues.end(),
                 [i = 0](void) mutable { return ++i; });
   C->registerSensorValues(IntSensor, IntValues.begin(), IntValues.end());
 
   std::vector<float> FloatValues(NumberOfSimulationCycles);
   std::generate(FloatValues.begin(), FloatValues.end(),
                 [f = 0.5f](void) mutable {
                   f += 0.3f;
                   return std::floor(f) + 0.5f;
                 });
   C->registerSensorValues(FloatSensor, FloatValues.begin(), FloatValues.end());
 
+  std::vector<TupleType> TupleValues(NumberOfSimulationCycles);
+  std::generate(TupleValues.begin(), TupleValues.end(),
+                [f1 = 0.f, f2 = 3.14f](void) mutable -> TupleType {
+                  f1 += f2;
+                  f2 -= f1;
+                  return {f1, f2};
+                });
+  C->registerSensorValues(TupleSensor, TupleValues.begin(), TupleValues.end());
+
   //
   // Simulate.
   //
 
   C->simulate(NumberOfSimulationCycles);
 
   return 0;
 }