input: Write a function to create a Python dictionary with three keys named "Name", "Address" and "Phone" and corresponding values. If any key does not have a value, it should be set to 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('John', '212 Smith Street', None) == {'Name': 'John', 'Address': '212 Smith Street', 'Phone': None}
  assert create_info_dict(None, None, None) == {'Name': None, 'Address': None, 'Phone': None}
  assert create_info_dict('Jane', None, '845-111-2222') == {'Name': 'Jane', 'Address': None, 'Phone': '845-111-2222'}
output: def create_info_dict(name=None, address=None, phone=None):
      return {'Name': name, 'Address': address, 'Phone': phone}