diff --git a/src/sdk/src/models/lesson.py b/src/sdk/src/models/lesson.py
index ba2358c..ef51aa8 100644
--- a/src/sdk/src/models/lesson.py
+++ b/src/sdk/src/models/lesson.py
@@ -1,102 +1,44 @@
 from datetime import datetime, date
 from pydantic import BaseModel
 
-class LessonDate(BaseModel):
-    Timestamp: int
-    Date: date
-    DateDisplay: str
-    Time: str
-
-class Change(BaseModel):
-    Id: int
-    Type: int
-    IsMerge: bool
-    Separation: bool
+#class Change(BaseModel):
+#    Id: int
+#    Type: int
+#    IsMerge: bool
+#    Separation: bool
 
 
-class Substitution(BaseModel):
-    Id: int
-    UnitId: int
-    ScheduleId: int
-    LessonDate: LessonDate
-
-class Distribution(BaseModel):
-    Id: int
-    Key: str
-    Shortcut: str
-    Name: str
-    PartType: str
-
-
-class Room(BaseModel):
-    Id: int
-    Code: str
-
-
-class TimeSlot(BaseModel):
-    Id: int
-    Start: str
-    End: str
-    Display: str
-    Position: int
-
-
-class Subject(BaseModel):
-    Id: int
-    Key: str
-    Name: str
-    Kod: str
-    Position: int
-
-
-class Teacher(BaseModel):
-    Id: int
-    Surname: str
-    Name: str
-    DisplayName: str
-
-
-class Clazz(BaseModel):
-    Id: int
-    Key: str
-    DisplayName: str
-    Symbol: str
+#class Substitution(BaseModel):
+#    Id: int
+#    UnitId: int
+#    ScheduleId: int
+#    LessonDate: LessonDate
 
+# TODO: Add a model for the substitutions
 
 class Lesson(BaseModel):
-    Id: int
-    MergeChangeId: int | None
-    Event: str | None
-    Date: date
-    Room: Room
-    TimeSlot: TimeSlot
-    Subject: Subject
-    TeacherPrimary: Teacher
-    TeacherSecondary: Teacher | None
-    Change: Change | None
-    Clazz: Clazz
-    Distribution: Distribution | None
-    PupilAlias: str | None
-    Visible: bool
-    Substitution: Substitution | None
+    id: int
+    position : int
+    date: date
+    room: str | None
+    start: str
+    end: str
+    subject: str | None
+    teacher: str | None
+    group: str | None
+    visible: bool
 
     @staticmethod
     def from_hebe_dict(data: dict):
         return Lesson(
-            Id=data["Id"],
-            MergeChangeId=data["MergeChangeId"],
-            Event=data["Event"],
-            Date=date.fromtimestamp(data["Date"]["Timestamp"] / 1000),
-            Room=Room(**data["Room"]),
-            TimeSlot=TimeSlot(**data["TimeSlot"]),
-            Subject=Subject(**data["Subject"]),
-            TeacherPrimary=Teacher(**data["TeacherPrimary"]),
-            TeacherSecondary=Teacher(**data["TeacherSecondary"]) if data["TeacherSecondary"] else None,
-            TeacherSecondary2=Teacher(**data["TeacherSecondary2"]) if data["TeacherSecondary2"] else None,
-            Change=Change(**data["Change"]) if data["Change"] else None,
-            Clazz=Clazz(**data["Clazz"]),
-            Distribution=Distribution(**data["Distribution"]) if data["Distribution"] else None,
-            PupilAlias=data["PupilAlias"],
-            Visible=data["Visible"],
-            Substitution=Substitution(**data["Substitution"]) if data["Substitution"] else None,
+            id=data["Id"],
+            position = data["TimeSlot"]["Position"],
+            date=datetime.fromtimestamp(data["Date"]["Timestamp"] / 1000),
+            room=data["Room"]["Code"],
+            start=data["TimeSlot"]["Start"],
+            end=data["TimeSlot"]["End"],
+            subject=data["Subject"]["Name"],
+            teacher=data["TeacherPrimary"]["DisplayName"],
+            group=data["Distribution"]["Shortcut"] if data["Distribution"] else None,
+            visible=data["Visible"],
         )