input: def generate_sample_data(num_entries: int) -> None:
      """Generate sample data for a web application using Python's faker library. 
      The output consists of three columns: name, email, and age. The number of entries 
      to generate is provided as an argument.
      
      >>> generate_sample_data(2)
      John Doe john.doe@example.com 45
      Jane Smith jane.smith@example.com 25
      """
      from faker import Faker
      
      fake = Faker()
      for _ in range(num_entries):
          print(fake.name(), fake.email(), fake.random_int(min=18, max=60))
output:     from faker import Faker
      
      fake = Faker()
      for _ in range(num_entries):
          print(fake.name(), fake.email(), fake.random_int(min=18, max=60))