diff --git a/examples/run_power_flow.py b/examples/run_power_flow.py
index 4c77d74..7d8b91a 100644
--- a/examples/run_power_flow.py
+++ b/examples/run_power_flow.py
@@ -6,7 +6,7 @@
 import requests
 import glob
 
-from cgmes_pgm_converter import System
+from src.pgm_service.power_grid.cgmes_pgm_converter import System
 
 logging.basicConfig(filename='run_powerflow.log', level=logging.INFO, filemode='w')
 
diff --git a/pyproject.toml b/pyproject.toml
index 747d9ad..372070b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ classifiers=[
     "Operating System :: MacOS",
     "Topic :: Scientific/Engineering :: Physics",
 ]
-requires-python = ">=3.12"
+requires-python = ">=3.10"
 dependencies = [
     "numpy>=1.20",
     "power_grid_model>=1.6",
diff --git a/src/__init__.py b/src/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/examples/cgmes_pgm_converter.py b/src/pgm_service/power_grid/cgmes_pgm_converter.py
similarity index 60%
rename from examples/cgmes_pgm_converter.py
rename to src/pgm_service/power_grid/cgmes_pgm_converter.py
index 8bc624a..9cee8a1 100644
--- a/examples/cgmes_pgm_converter.py
+++ b/src/pgm_service/power_grid/cgmes_pgm_converter.py
@@ -23,8 +23,8 @@ def load_cim_data(self, res):
         # list_SvPowerFlow = [elem for elem in res.values() if elem.__class__.__name__ == "SvPowerFlow"]
         # list_EnergySources = [elem for elem in res.values() if elem.__class__.__name__ == "EnergySource"]
         # list_EnergyConsumer = [elem for elem in res.values() if elem.__class__.__name__ == "EnergyConsumer"]
-        # list_ACLineSegment = [elem for elem in res.values() if elem.__class__.__name__ == "ACLineSegment"]
-        # list_Terminals = [elem for elem in res.values() if elem.__class__.__name__ == "Terminal"]
+        list_ACLineSegment = [elem for elem in res['topology'].values() if elem.__class__.__name__ == "ACLineSegment"]
+        list_Terminals = [elem for elem in res['topology'].values() if elem.__class__.__name__ == "Terminal"]
         # list_Terminals_ES = [elem for elem in list_Terminals if
         #                      elem.ConductingEquipment.__class__.__name__ == "EnergySource"]
         # list_Terminals_EC = [elem for elem in list_Terminals if
@@ -35,11 +35,16 @@ def load_cim_data(self, res):
             self.nodes.append(TPNode.mRID)
             self.voltages.append(dict_VoltageLevel[TPNode])
 
-        # # create branches type ACLineSegment
-        # for ACLineSegment in list_ACLineSegment:
-        #     self.lines[ACLineSegment]
+        # create branches type ACLineSegment
+        for ACLineSegment in list_ACLineSegment:
+            uuid_ACLineSegment = ACLineSegment.mRID
+            connected_nodes = self._get_nodes(list_Terminals, uuid_ACLineSegment)
+            node_ids = list[connected_nodes.keys()]
+            status = list[connected_nodes.values()]
+            # self.lines[ACLineSegment.mRID] = {"from_node": node_ids[0],
+            #                                   "to_node": node_ids[1]}
 
-        # line = initialize_array("input", "line", len(self.lines))
+        line = initialize_array("input", "line", len(self.lines))
         # line["id"] =
         # line["from_node"] =
         # line["to_node"] =
@@ -60,3 +65,23 @@ def create_pgm_input(self):
         print("debug")
 
         return {"node": node}
+
+    def _get_nodes(self, list_Terminals, elem_uuid):
+        start_node_uuid = None
+        end_node_uuid = None
+        start_node_connected = None
+        end_node_connected = None
+
+        for terminal in list_Terminals:
+            if terminal.ConductingEquipment.mRID != elem_uuid:
+                continue
+            sequence_number = terminal.sequenceNumber
+            if sequence_number == 1:
+                start_node_uuid = terminal.TopologicalNode.mRID
+                start_node_connected = terminal.connected
+            elif sequence_number == 2:
+                end_node_uuid = terminal.TopologicalNode.mRID
+                end_node_connected = terminal.connected
+
+
+        return {start_node_uuid: start_node_connected, end_node_uuid: end_node_connected}