input: Write a function to create a Python dictionary with three keys named "Name", "Address" and "Phone". The function should take three parameters corresponding to the values for "Name", "Address", and "Phone". If any of the parameters are missing, the function should return None.
  assert create_info_dict('John', '212 Smith Street', '732-123-4567')=={ 'Name': 'John', 'Address': '212 Smith Street', 'Phone': '732-123-4567' }
  assert create_info_dict('Jane', '456 Maple Avenue', '345-678-9012')=={ 'Name': 'Jane', 'Address': '456 Maple Avenue', 'Phone': '345-678-9012' }
  assert create_info_dict('Sam', None, '987-654-3210')==None
  assert create_info_dict(None, '123 Oak Lane', '123-456-7890')==None
  assert create_info_dict('Tom', None, None)==None
output: def create_info_dict(name, address, phone):
      if name is None or address is None or phone is None:
          return None
      return {'Name': name, 'Address': address, 'Phone': phone}