class_docstr: Object representing the anonymized parsed dataset.
class_docstr_tok: ["Object","representing","the","anonymized","parsed","dataset","."]
code: def add_col(self, c):
      self.columns.append(c)
  
imports: import sys
  import os
  import re
  from random import random
  from random import randrange
  from random import uniform
label_desc: Use image node_id 4 for calling the Dataset obj's underlying member method code with example usage: obj.add_col(c) without return types