class_docstr: The contextual bandit label type for the constructor of DFtoVW.
class_docstr_tok: ["The","contextual","bandit","label","type","for","the","constructor","of","DFtoVW","."]
docstr: Returns the ContextualbanditLabel string representation.
  
  Args:
      df: The dataframe from which to select the column(s).
  
  Returns:
      The ContextualbanditLabel string representation.
docstr_tok: ["Returns","the","ContextualbanditLabel","string","representation",".","Args",":","df",":","The","dataframe","from","which","to","select","the","column","(","s",")",".","Returns",":","The","ContextualbanditLabel","string","representation","."]
code: def process(self, df: pd.DataFrame) -> pd.Series:
      """Returns the ContextualbanditLabel string representation.
  
      Args:
          df: The dataframe from which to select the column(s).
  
      Returns:
          The ContextualbanditLabel string representation.
      """
      out = (
          self.action.get_col(df)
          + ":"
          + self.cost.get_col(df)
          + ":"
          + self.probability.get_col(df)
      )
  
      return out
  
imports: import warnings
  import numpy
  import pandas
  from typing import Any, Hashable, List, Optional, Tuple, Type, Union
label_desc: Use image node_id 2 for calling the ContextualbanditLabel obj's underlying member method code with example usage: obj.process(df) and returns: out