class_docstr: Base class for cohort definitions. In order to implement a new cohort, you should
  subclass this class and implement :meth:`population` and :meth:`data_split`.
docstr: Prepares the data by calling the :meth:`population` and :meth:`data_split`.
docstr_tok: ["Prepares","the","data","by","calling","the",":","meth",":","`","population","`","and",":","meth",":","`","data_split","`","."]
code: def prepare(self) -> None:
      """
      Prepares the data by calling the :meth:`population` and :meth:`data_split`.
      """
      self.population()
      self.data_split()
  
file_path: life2vec/src/data_new/populations/base.py
imports: from dataclasses import dataclass
  import numpy
  import pandas
label_desc: Use image node_id 3 for calling the Population obj's underlying member method code with example usage: obj.prepare() without return types