code: def create_test_data(n_rows):
      np.random.seed(1)
      X = pd.DataFrame(np.random.randn(n_rows, 2), columns=["x1", "x2"])
      y = pd.Series(np.random.binomial(1, 0.4, n_rows))
      return X, y
  
file_path: AIX360/tests/rule_induction/ripper/test_ripper_ruleset_generator.py
imports: from unittest import TestCase
  import numpy
  import pandas
  from aix360.algorithms.rule_induction.ripper.ripper_ruleset_generator import RipperRuleSetGenerator
  from aix360.algorithms.rule_induction.trxf.core.conjunction import Conjunction
  from aix360.algorithms.rule_induction.trxf.core.dnf_ruleset import DnfRuleSet
  from aix360.algorithms.rule_induction.trxf.core.feature import Feature
  import aix360.algorithms.rule_induction.trxf.core.predicate
label_desc: Use image node_id 1 for calling a global function with example usage: create_test_data(n_rows) and returns: X,  y