text: from pythoncourse2020.model.group import Contact
  import random
  import string
  
  
  def random_string(prefix, maxlen):
      symbols = string.ascii_letters + string.digits + " "
      return prefix + "".join([random.choice(symbols) for i in range(random.randrange(maxlen))])
  
  testdata = [
      Contact(first_name=random_string("first_name", 10), midle_name=random_string("midle_name", 20), last_name=random_string("last_name", 20))
      for name in range(1)
      ]