input: 
  from faker import Faker
  
  def generate_sample_data(n: int) -> None:
      """ Generate sample data using Python's faker library. The output will contain
      three columns of data: name, email, and age.
      >>> generate_sample_data(3)
      Traceback (most recent call last):
          ...
      TypeError: 'NoneType' object is not subscriptable
      """
      fake = Faker()
      for _ in range(n):
          print(fake.name(), fake.email(), fake.random_int(min=18, max=60))
  
output:     fake = Faker()
      for _ in range(n):
          print(fake.name(), fake.email(), fake.random_int(min=18, max=60))