Simon Bjurek
--- a/b_asic/scheduler_gui/main_window.py
+++ b/b_asic/scheduler_gui/main_window.py
        The edited schedule.
    """
    if not QApplication.instance():
-        QApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
--- a/b_asic/schedule.py
+++ b/b_asic/schedule.py
        """The start times of the operations in the schedule."""
        return self._start_times

+    @start_times.setter
+    def start_times(self, start_times: dict[GraphID, int]) -> None:
+        if not isinstance(start_times, dict[GraphID, int]):
--- a/b_asic/scheduler.py
+++ b/b_asic/scheduler.py
        # handle the remaining sets
        for outports in prec_list[2:]:
            for outport in outports:
                operation = outport.operation
-                if operation.graph_id not in sched._start_times:
+                if operation.graph_id not in schedule.start_times:
                    op_start_time = 0
                    for current_input in operation.inputs:
-                        if len(current_input.signals) != 1:
-                            raise ValueError(
-                                "Error in scheduling, dangling input port detected."
-                            )
-                        if current_input.signals[0].source is None:
-                            raise ValueError(
-                                "Error in scheduling, signal with no source detected."
-                            )
--- a/.coveragerc 0 → 100644
+++ b/.coveragerc 0 → 100644
+[report]
+exclude_lines =
+    .*if TYPE_CHECKING:.*
+    raise NotImplementedError