Enhancements & Bug Fixes

- Line, and histogram data can now be accessed from their `data` methods.
- Fixed a bug causing `maximize` to fail if a screen is not specified
- Global events can now be coroutines or functions.

lightweight_charts/util.py

@@ -99,7 +99,11 @@ class Emitter:
         return self
 
     def _emit(self, *args):
-        self._callable(*args) if self._callable else None
+        if self._callable:
+            if asyncio.iscoroutinefunction(self._callable):
+                asyncio.create_task(self._callable(*args))
+            else:
+                self._callable(*args)
 
 
 class JSEmitter: