code: def flipud(arr):
      """Flip an image-like array vertically.
  
      **Supported dtypes**:
  
          * ``uint8``: yes; fully tested
          * ``uint16``: yes; fully tested
          * ``uint32``: yes; fully tested
          * ``uint64``: yes; fully tested
          * ``int8``: yes; fully tested
          * ``int16``: yes; fully tested
          * ``int32``: yes; fully tested
          * ``int64``: yes; fully tested
          * ``float16``: yes; fully tested
          * ``float32``: yes; fully tested
          * ``float64``: yes; fully tested
          * ``float128``: yes; fully tested
          * ``bool``: yes; fully tested
  
      Parameters
      ----------
      arr : ndarray
          A 2D/3D `(H, W, [C])` image array.
  
      Returns
      -------
      ndarray
          Vertically flipped array.
  
      Examples
      --------
      >>> import numpy as np
      >>> import imgaug.augmenters.flip as flip
      >>> arr = np.arange(16).reshape((4, 4))
      >>> arr_flipped = flip.flipud(arr)
  
      Create a ``4x4`` array and flip it vertically.
  
      """
      # Note that this function is currently not called by Flipud for performance
      # reasons. Changing this will therefore not affect Flipud.
      return arr[::-1, ...]
  
imports: from __future__ import print_function, division, absolute_import
  import numpy
  import cv2
  import six.moves
  from imgaug.imgaug import _normalize_cv2_input_arr_
  from .None import meta
  from ..None import parameters
  from ..None import dtypes
label_desc: Use image node_id 4 for calling a global function with example usage: flipud(arr) and returns: arr