text: from ramda import *
  from ramda.private.asserts import *
  
  
  def comparator_test():
      by_age = comparator(lambda a, b: a["age"] < b["age"])
      people = [{"name": "a", "age": 22}, {"name": "b", "age": 14}]
      people_by_increasing_age = sort(by_age, people)
  
      assert_equal(people_by_increasing_age, list(reversed(people)))
  