class_docstr: Transformer that returns a copy of the input array
  
  For usage examples, please see
  https://rasbt.github.io/mlxtend/user_guide/preprocessing/CopyTransformer/
code: def __init__(self):
      pass
  
file_path: mlxtend/mlxtend/preprocessing/copy_transformer.py
imports: import numpy
  from scipy.sparse import issparse
  from sklearn.base import BaseEstimator
label_desc: Use image node_id 1 to create a new CopyTransformer object from inherited base classes: BaseEstimator with example: obj = CopyTransformer()