code: def shift(self, vertical=0, horizontal=0, inplace=False):
      if not inplace:
          shifted = deepcopy(self)
          return shifted.shift(
              vertical=vertical, horizontal=horizontal, inplace=True
          )
  
      self.up += vertical
      self.down += vertical
      self.left += horizontal
      self.right += horizontal
      return self
  
imports: import enum
  from copy import deepcopy
  import numpy
  from skimage import img_as_ubyte
  from skimage.transform import rescale, resize
  from .countless2d import zero_corrected_countless
label_desc: Use image node_id 10 for calling the ObjectMask obj's underlying member method code with example usage: obj.shift(vertical, horizontal, inplace) and returns: self, shifted