Update

2023/scripts/rigging_tools/ngskintools2/api/cmd_wrappers.py

@@ -0,0 +1,19 @@
+from maya import cmds
+
+
+def as_comma_separated_list(l):
+    return ",".join((str(i) for i in l))
+
+
+def get_source(plug, **kwargs):
+    for i in cmds.listConnections(plug, source=True, **kwargs) or []:
+        return i
+    return None
+
+
+def get_source_node(plug):
+    return get_source(plug, plugs=False)
+
+
+def get_source_plug(plug):
+    return get_source(plug, plugs=True)