>>> from snowflake.snowpark.types import DecimalType
>>> df = session.create_dataframe(
... [10, 10, 20, 25, 30],
... schema=["a"]
... ).select(skew("a").cast(DecimalType(scale=4)))
>>> df.collect()
[Row(CAST (SKEW("A") AS NUMBER(38, 4))=Decimal('0.0524'))]