如何在pyspark中查看为窗口函数创建的分区大小？

from pyspark.sql import SparkSession
from pyspark.sql.window import Window
from pyspark.sql.functions import row_number

# 创建SparkSession
spark = SparkSession.builder.getOrCreate()

# 创建示例数据
data = [("Alice", 25), ("Bob", 30), ("Alice", 35), ("Bob", 40), ("Alice", 45)]
df = spark.createDataFrame(data, ["Name", "Age"])

# 创建窗口规范
window_spec = Window.partitionBy("Name").orderBy("Age")

# 添加分区列和行号
df_with_partition = df.withColumn("Partition", row_number().over(window_spec))

# 查看分区大小
df_with_partition.show()