#NEWLINE# def drag_and_drop_by_offset( self , source , xoffset , yoffset ) : #NEWLINE# #INDENT# '\n        Holds down the left mouse button on the source element,\n           then moves to the target offset and releases the mouse button.\n\n        :Args:\n         - source: The element to mouse down.\n         - xoffset: X offset to move to.\n         - yoffset: Y offset to move to.\n        ' #NEWLINE# self . click_and_hold ( source ) #NEWLINE# self . move_by_offset ( xoffset , yoffset ) #NEWLINE# self . release ( ) #NEWLINE# return self