input: from typing import Dict, Tuple
  
  def create_people_dict(people: Tuple[str, int]...) -> Dict[str, int]:
      """Creates a dictionary mapping names to ages from a list of names and ages.
      >>> create_people_dict(("John", 20), ("Jane", 40), ("Alex", 18), ("Peter", 45))
      {'John': 20, 'Jane': 40, 'Alex': 18, 'Peter': 45}
      """
output:     people_dict = {}
      for name, age in people:
          people_dict[name] = age
      return people_dict