class_docstr: Function that slices array and extract elements.
class_docstr_tok: ["Function","that","slices","array","and","extract","elements","."]
code: def forward(self, xs):
      slices = tuple(
          [
              backend.from_chx(s)
              if isinstance(s, chainerx.ndarray)
              else s
              for s in self.slices
          ]
      )
      return (utils.force_array(xs[0][slices]),)
  
imports: import numpy
  import chainer
  from chainer import backend
  from chainer import function_node
  from chainer import utils
  from chainer.utils import type_check
  from chainer import variable
  import chainerx
label_desc: Use image node_id 3 for calling the GetItem obj's underlying member method code with example usage: obj.forward(xs) and returns: utils