input: Write a python function to parse a JSON string and return the resulting dictionary.
  assert parse_json('{"a":1, "b": "Hello", "c": {"d": [34, 56]}}') == {'a': 1, 'b': 'Hello', 'c': {'d': [34, 56]}}
  assert parse_json('{"x":10, "y": "World"}') == {'x': 10, 'y': 'World'}
  assert parse_json('{}') == {}
output: import json
  
  def parse_json(json_string):
      return json.loads(json_string)