input: Write a function to create a shallow copy of a dictionary using the copy module.
  assert shallow_copy_dict({'a': 1, 'b': 2}) == {'a': 1, 'b': 2}
  assert shallow_copy_dict({'x': 10, 'y': 20, 'z': 30}) == {'x': 10, 'y': 20, 'z': 30}
  assert shallow_copy_dict({'key1': 'value1', 'key2': 'value2'}) == {'key1': 'value1', 'key2': 'value2'}
output: def shallow_copy_dict(original_dict):
      import copy
      return copy.copy(original_dict)