class_docstr: Concatenate variables along a new axis.
class_docstr_tok: ["Concatenate","variables","along","a","new","axis","."]
code: def __init__(self, axis):
      self.axis = axis
  
file_path: chainer/chainer/functions/array/stack.py
imports: import chainer
  from chainer import backend
  from chainer import function_node
  from chainer.utils import type_check
  import chainerx
label_desc: Use image node_id 1 to create a new Stack object from inherited base classes: function_node with example: obj = Stack(axis)