Scheduler first commit

examples/schedule/schedule_lib/start.py

@@ -0,0 +1,16 @@
+from typing import TYPE_CHECKING, Callable, List, Any
+
+from .funcs import generate_dot_wrap
+
+from .exec_node import ExecNode
+
+
+class Start(ExecNode):
+    def __init__(self) -> None:
+        ExecNode.__init__(self, out_connections=1)
+
+    def generate_dot(self, nodes: List[str], edges: List[str], visited: set[int]) -> None:
+        if self.id in visited:
+            return
+        nodes.append(f"{self.id}[label=start]")
+        super().generate_dot(nodes, edges, visited)