'List media instance in media list at a position
The L{lock} should be held upon entering this function.
@param i_pos: position in array where to insert.
@return: media instance at position i_pos, or None if not found. In case of success, L{media_retain}() is called to increase the refcount on the media.'

def item_at_index(self, i_pos):

    return libvlc_media_list_item_at_index(self, i_pos)
