Github user lins05 commented on the issue: https://github.com/apache/spark/pull/16533 What about also support using the type name without the parentheses, as a syntax sugar? e.g.: ```python @udf(returnType =IntegerType) # instead of IntegerType() def f(...): ... ``` It can be achieved by checking if the returnType is a subclass of DataType: ```python if isinstance(returnType, type) and DataType in returnType.__mro__: returnType = returnType() else ... ```
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