Display devices and there status

graph.py

@@ -14,6 +14,10 @@ custom_style = Style(
 
 
 def generate_graph(x_labels, data, style=custom_style):
+    """
+    Generate SVG line graph using pygal
+    example usage: generate_graph([1,2,3], [("RPM", [1,2,3]),("Power", [2,4,6])]) 
+    """
     graph = pygal.Line(show_y_guides=False,
                        show_legend=False, style=style)
     graph.x_labels = x_labels