class_docstr: Transformer that returns the sum all series as one series.
code: def __init__(self) -> None:
      super().__init__()
  
imports: from typing import Any, Callable, Dict, Optional, Tuple, Union
  import pandas
  from sklearn.decomposition import PCA
  from .._transformer_base import _NonTrainableMultivariateTransformer, _TrainableMultivariateTransformer
label_desc: Use image node_id 1 to create a new SumAll object from inherited base classes: _NonTrainableMultivariateTransformer with example: obj = SumAll()