Add a way to use EduStudent with a StudentOnly id

edupage_api/messages.py

@@ -44,6 +44,6 @@ def send_message(self, recipients: Union[list[EduAccount], EduAccount, list[str]
 
         changes = response.get("changes")
         if changes == [] or changes is None:
-            raise RequestError("Failed to send message (edupage returned an empty 'changes' array)")
+            raise RequestError("Failed to send message (edupage returned an empty 'changes' array) - https://github.com/ivanhrabcak/edupage-api/issues/62")
 
         return int(changes[0].get("timelineid"))

edupage_api/people.py

@@ -92,6 +92,17 @@ def __init__(self, person_id: int, name: str, gender: Gender, in_school_since: d
         self.class_id = class_id
         self.number_in_class = number_in_class
 
+        self.__student_only = False
+
+    def get_id(self):
+        if not self.__student_only:
+            return super().get_id()
+        else:
+            return super().get_id().replace("Student", "StudentOnly")
+
+    def set_student_only(self, student_only: bool):
+        self.__student_only = student_only
+
 
 @dataclass
 class EduStudentSkeleton: