This holds one content object and uses an Evas Map of transformation points to be later used with this content. So the content will be moved, resized, etc as a single image. So it will improve performance when you have a complex interface, with a lot of elements, and will need to resize or move it frequently (the content object and its children).
default - The main content of the mapbuf
parent (efl.evas.Object) – The parent object
**kwargs – All the remaining keyword arguments are interpreted as properties of the instance