code: def _prepare(self, X):
      if self.one_hot:
          X = pd.get_dummies(X, columns=X.columns)
      return X
  
file_path: prince/prince/mca.py
imports: from __future__ import annotations
  import numpy
  import pandas
  import sklearn.base
  import sklearn.utils
  from prince import utils
  from .None import ca
label_desc: Use image node_id 2 for calling the MCA obj's underlying member method code with example usage: obj._prepare(X) and returns: X