input: Write a python function to get the full name of a person from a dictionary.
  assert get_full_name({"first_name": "John", "last_name": "Doe", "age": 28}) == "John Doe"
  assert get_full_name({"first_name": "Jane", "last_name": "Smith", "age": 34}) == "Jane Smith"
  assert get_full_name({"first_name": "Emily", "last_name": "Davis", "age": 22}) == "Emily Davis"
output: def get_full_name(person):
      return f"{person['first_name']} {person['last_name']}"