class_docstr: The ScreenGrabFormat provided a means to grab screenshots using
  the uri of "<screen>".
  
  This functionality is provided via Pillow. Note that "<screen>" is
  only supported on Windows and OS X.
  
  Parameters for reading
  ----------------------
  No parameters.
class_docstr_tok: ["The","ScreenGrabFormat","provided","a","means","to","grab","screenshots","using","the","uri","of","``","<","screen",">","''",".","This","functionality","is","provided","via","Pillow",".","Note","that","``","<","screen",">","''","is","only","supported","on","Windows","and","OS","X.","Parameters","for","reading","--","--","--","--","--","--","--","--","--","--","--","No","parameters","."]
code: def _get_data(self, index):
      ImageGrab = self._init_pillow()
      assert ImageGrab
  
      pil_im = ImageGrab.grab()
      assert pil_im is not None
      im = np.asarray(pil_im)
      return im, {}
  
file_path: imageio/imageio/plugins/grab.py
imports: import threading
  import numpy
  from ..core import Format
label_desc: Use image node_id 2 for calling the ScreenGrabFormat obj's underlying member method code with example usage: obj._get_data(index) and returns: im,  dict