restored original fix

helpers.py

@@ -1,49 +0,0 @@
-from threading import Lock
-from typing import Dict
-
-
-class CounterLock:
-    def __init__(self):
-        self.counter = 0
-        self.lock = Lock()
-
-    def acquire(self) -> bool:
-        self.counter += 1
-        return self.lock.acquire()
-
-    def release(self) -> None:
-        self.counter -= 1
-        return self.lock.release()
-
-    @property
-    def no_more_waiters(self) -> bool:
-        return self.counter == 0
-
-
-class NamedLock:
-    _lock = Lock()
-    _locks: Dict[str, CounterLock] = {}
-
-    def acquire(self, name: str) -> bool:
-        self._lock.acquire()
-
-        if name not in self._locks:
-            self._locks[name] = CounterLock()
-
-        self._lock.release()
-
-        return self._locks[name].acquire()
-
-
-
-    def release(self, name: str):
-        self._lock.acquire()
-
-        if name not in self._locks:
-            return self._lock.release()
-
-        self._locks[name].release()
-        if self._locks[name].no_more_waiters:
-            del self._locks[name]
-
-        return self._lock.release()