input: Write a python function to move objects in a list by updating their x and y coordinates based on their x_speed and y_speed.
  assert move_objects([{'x': 5, 'y': 5, 'x_speed': 1, 'y_speed': 1}]) == [{'x': 6, 'y': 6, 'x_speed': 1, 'y_speed': 1}]
  assert move_objects([{'x': 10, 'y': 10, 'x_speed': -2, 'y_speed': -2}]) == [{'x': 8, 'y': 8, 'x_speed': -2, 'y_speed': -2}]
  assert move_objects([{'x': 0, 'y': 0, 'x_speed': 0, 'y_speed': 0}]) == [{'x': 0, 'y': 0, 'x_speed': 0, 'y_speed': 0}]
output: def move_objects(objects):
      for obj in objects:
          obj['x'] += obj['x_speed']
          obj['y'] += obj['y_speed']
      return objects