input: Write a function to combine two dictionaries of similar structure together, such that the entries in the two dictionaries are merged into a single dictionary.
  
  def merge_dict(dict1, dict2):
      merged_dict = {**dict1, **dict2}
      return merged_dict
  
  assert merge_dict({'a':1, 'b':2, 'c':3}, {'d':4, 'e':5, 'f':6}) == {'a':1, 'b':2, 'c':3, 'd':4, 'e':5, 'f':6}
  assert merge_dict({}, {'d':4, 'e':5, 'f':6}) == {'d':4, 'e':5, 'f':6}
  assert merge_dict({'a':1, 'b':2, 'c':3}, {}) == {'a':1, 'b':2, 'c':3}
  assert merge_dict({}, {}) == {}
output: def merge_dict(dict1, dict2):
      merged_dict = {**dict1, **dict2}
      return merged_dict