diff --git a/bot_z/async_operator.py b/bot_z/async_operator.py
index 9259148..749d235 100644
--- a/bot_z/async_operator.py
+++ b/bot_z/async_operator.py
@@ -7,7 +7,7 @@ the Operator.
 """
 
 import asyncio
-from concurrent.futures import ThreadPoolExecutor
+from concurrent.futures import ThreadPoolExecutor, Executor
 import functools
 import logging
 import typing as T
@@ -19,9 +19,9 @@ from bot_z.exceptions import OperationFailed
 alog = logging.getLogger("asyncio")
 
 
-async def _push_to_loop(
+async def push_to_loop(
     loop: asyncio.AbstractEventLoop,
-    executor: ThreadPoolExecutor,
+    executor: Executor,
     func: T.Callable,
     *args,
     **kwargs
@@ -52,7 +52,7 @@ class AsyncOperator(object):
     async def login(self, username: str, password: str) -> None:
         """Perform the login. Raise if failing."""
         alog.debug("Logging in [%s]", self.name)
-        _ = await _push_to_loop(
+        _ = await push_to_loop(
             self.loop, self.executor, self.op.login, username, password
         )
         if not self.op.logged_in:
@@ -62,7 +62,7 @@ class AsyncOperator(object):
     async def logout(self) -> None:
         """Perform the logout. Raise if failing."""
         alog.debug("Logging out [%s]", self.name)
-        _ = await _push_to_loop(self.loop, self.executor, self.op.logout)
+        _ = await push_to_loop(self.loop, self.executor, self.op.logout)
         if self.op.logged_in:
             raise OperationFailed("Failed to logout.")
         alog.info("Logged out [%s]", self.name)
@@ -70,7 +70,7 @@ class AsyncOperator(object):
     async def checkin(self) -> None:
         """Perform the checkin. Raise if failing."""
         alog.debug("Checking in [%s]", self.name)
-        _ = await _push_to_loop(self.loop, self.executor, self.op.check_in)
+        _ = await push_to_loop(self.loop, self.executor, self.op.check_in)
         if not self.op.checked_in:
             raise OperationFailed("Failed to checkin.")
         alog.info("Checked in [%s]", self.name)
@@ -78,7 +78,7 @@ class AsyncOperator(object):
     async def checkout(self) -> None:
         """Perform the checkout. Raise if failing."""
         alog.debug("Checking out [%s]", self.name)
-        _ = await _push_to_loop(self.loop, self.executor, self.op.check_out)
+        _ = await push_to_loop(self.loop, self.executor, self.op.check_out)
         if self.op.checked_in:
             raise OperationFailed("Failed to checkout.")
         alog.info("Checked out [%s]", self.name)
@@ -89,7 +89,7 @@ class AsyncOperator(object):
         The list may be empty.
         """
         alog.debug("Retrieving the list of movements [%s]", self.name)
-        res = await _push_to_loop(self.loop, self.executor, self.op.get_movements)
+        res = await push_to_loop(self.loop, self.executor, self.op.get_movements)
         alog.info("List of movements [%s]: %s", self.name, res)
         return res