在Colab中创建Sentinel2 NDVI时间序列图？

Question

Python中以下语法的等价物是什么：

ui.Chart.image.doySeriesByYear({
               imageCollection: collection, 
               bandName: 'NDVI', 
               region: forest, 
               regionReducer: ee.Reducer.mean(), 
               scale: 500});