diff --git a/src/sdk/src/interfaces/core/interface.py b/src/sdk/src/interfaces/core/interface.py
index 89bed18..cf38279 100644
--- a/src/sdk/src/interfaces/core/interface.py
+++ b/src/sdk/src/interfaces/core/interface.py
@@ -3,6 +3,7 @@ from sdk.src.models.exam import Exam
 from sdk.src.models.grade import Grade
 from sdk.src.models.note import Note
 from sdk.src.models.student import Student
+from sdk.src.models.lesson import Lesson
 
 
 class CoreInterface:
@@ -26,3 +27,6 @@ class CoreInterface:
 
     def get_notes() -> list[Note]:
         pass
+    
+    def get_timetable(from_: date, to: date) -> list[Lesson]:
+        pass
\ No newline at end of file