input: 
  def create_people_dict(people: str) -> dict:
      """
      Takes a string of names and ages in the format 'Name (age)' and creates a dictionary with names as keys and ages as values.
      >>> create_people_dict('John (20), Jane (40), Alex (18), Peter (45)')
      {'John': 20, 'Jane': 40, 'Alex': 18, 'Peter': 45}
      """
  
output:     people_dict = {}
      for person in people.split(', '):
          name, age = person.split(' (')
          age = int(age.rstrip(')'))
          people_dict[name] = age
      return people_dict