Create a copy of this.
All the properties of this are copied into a new element, with the exception of parent, timeline and name. Other data, such the list of a Container's children, is **not** copied.
If deep is true, then the new element is prepared so that it can be used in
paste or
paste_element. In the case of copying a Container, this ensures that the
children of this will also be pasted. The new element should not be used for anything else and can only
be used **once** in a pasting operation. In particular, the new element itself is not an actual 'deep' copy of
this, but should be thought of as an intermediate object used for a single paste operation.
| this |
The TimelineElement to copy |
| deep |
Whether the copy is needed for pasting |
|
The newly create element, copied from this. |