class_docstr: Log-softmax activation function.
code: def forward_chainerx(self, xs):
      return (chainerx.log_softmax(xs[0], axis=self.axis),)
  
imports: import chainer
  from chainer import backend
  from chainer.backends import cuda
  from chainer import function_node
  import chainer.functions
  from chainer.utils import type_check
  import chainerx
label_desc: Use image node_id 3 for calling the LogSoftmax obj's underlying member method code with example usage: obj.forward_chainerx(xs) and returns: chainerx