class_docstr: Calculates the element-wise sum of the given values.
class_docstr_tok: ["Calculates","the","element-wise","sum","of","the","given","values","."]
code: def __init__(self, name: Optional[str] = None):
      super().__init__(name=name)
      self.sum = None
  
imports: import abc
  from typing import Optional
  from sonnet.src import base
  from sonnet.src import once
  import tensorflow
label_desc: Use image node_id 1 to create a new Sum object from inherited base classes: Metric with example: obj = Sum(name)