input: Write a python function to add a new person to the dictionary with their age and gender.
  assert add_person(dict, 'Charlie', 25, 'Male') == {'Alice': {'Age': 30, 'Gender': 'Female'}, 'Bob': {'Age': 20, 'Gender': 'Male'}, 'Charlie': {'Age': 25, 'Gender': 'Male'}}
  assert add_person(dict, 'Diana', 28, 'Female') == {'Alice': {'Age': 30, 'Gender': 'Female'}, 'Bob': {'Age': 20, 'Gender': 'Male'}, 'Charlie': {'Age': 25, 'Gender': 'Male'}, 'Diana': {'Age': 28, 'Gender': 'Female'}}
output: def add_person(dictionary, name, age, gender):
      dictionary[name] = {'Age': age, 'Gender': gender}
      return dictionary