input: Write a Python function that combines two dictionaries into one.
  
  assert combine_dicts({ "R": "Red", "B": "Black", "P": "Pink" }, { "G": "Green", "W": "White" })=={'B': 'Black', 'R': 'Red', 'P': 'Pink', 'G': 'Green', 'W': 'White'}
  assert combine_dicts({ "R": "Red", "B": "Black", "P": "Pink" },{ "O": "Orange", "W": "White", "B": "Black" })=={'O': 'Orange', 'P': 'Pink', 'B': 'Black', 'W': 'White', 'R': 'Red'}
  assert combine_dicts({ "G": "Green", "W": "White" },{ "O": "Orange", "W": "White", "B": "Black" })=={'W': 'White', 'O': 'Orange', 'G': 'Green', 'B': 'Black'}
output: def combine_dicts(dict1, dict2):
      combined = dict1.copy()
      combined.update(dict2)
      return combined