diff --git a/stubs/rx/internal/priorityqueue.pyi b/stubs/rx/internal/priorityqueue.pyi
new file mode 100644
--- /dev/null
+++ b/stubs/rx/internal/priorityqueue.pyi
@@ -0,0 +1,17 @@
+# Stubs for rx.internal.priorityqueue (Python 3)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any, Optional
+
+class PriorityQueue:
+    items: Any = ...
+    count: int = ...
+    lock: Any = ...
+    def __init__(self, capacity: Optional[Any] = ...) -> None: ...
+    def __len__(self): ...
+    def peek(self): ...
+    def remove_at(self, index: Any): ...
+    def dequeue(self): ...
+    def enqueue(self, item: Any) -> None: ...
+    def remove(self, item: Any): ...