input: from typing import List
  
  def generate_sample_data(num_samples: int) -> List[tuple]:
      """Generate sample data for a web application using Python's faker library. The output should contain three columns of data: name, email, and age.
      >>> generate_sample_data(2)
      [('John Doe', 'john.doe@example.com', 25), ('Jane Smith', 'jane.smith@example.com', 30)]
      """
      from faker import Faker
      fake = Faker()
      return [(fake.name(), fake.email(), fake.random_int(min=18, max=60)) for _ in range(num_samples)]
output:     from faker import Faker
      fake = Faker()
      return [(fake.name(), fake.email(), fake.random_int(min=18, max=60)) for _ in range(num_samples)]