code: def kidney():
      """Mouse kidney tissue.
  
      This biological tissue on a pre-prepared slide was imaged with confocal
      fluorescence microscopy (Nikon C1 inverted microscope).
      Image shape is (16, 512, 512, 3). That is 512x512 pixels in X-Y,
      16 image slices in Z, and 3 color channels
      (emission wavelengths 450nm, 515nm, and 605nm, respectively).
      Real-space voxel size is 1.24 microns in X-Y, and 1.25 microns in Z.
      Data type is unsigned 16-bit integers.
  
      Notes
      -----
      This image was acquired by Genevieve Buckley at Monasoh Micro Imaging in
      2018.
      License: CC0
  
      Returns
      -------
      kidney : (16, 512, 512, 3) uint16 ndarray
          Kidney 3D multichannel image.
      """
      return _load("data/kidney.tif")
  
imports: import numpy
  import shutil
  from ..util.dtype import img_as_bool
  from ._registry import registry, registry_urls
  from ..None import __version__
  import os.path
  import os
label_desc: Use image node_id 21 for calling a global function with example usage: kidney() and returns: _load