Support for commands handling

workers/base.py

@@ -0,0 +1,17 @@
+from abc import abstractmethod
+
+class BaseWorker:
+  def __init__(self, **args):
+    for arg, value in args.items():
+      setattr(self, arg, value)
+    self._setup()
+
+  def _setup(self):
+    return
+
+  @abstractmethod
+  def status_update(self, **args):
+    ...
+
+  def format_topic(self, *args):
+    return '/'.join([self.topic_prefix, *args])