class_docstr: An abstraction to use when building tensor factories.
docstr: Stack tensors of this data type together.
docstr_tok: ["Stack","tensors","of","this","data","type","together","."]
code: def stack(self, xs: list, axis: int = 0):
      """Stack tensors of this data type together."""
  
imports: import abc
  from typing import Optional
  from typing import Union
  import numpy
  import tensorflow
label_desc: Use image node_id 8 for calling the AbstractFactory obj's underlying member method code with example usage: obj.stack(xs, axis) without return types