Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/19439#discussion_r150449349
--- Diff: python/pyspark/ml/image.py ---
@@ -80,7 +80,7 @@ def imageFields(self):
"""
Returns field names of image columns.
- :rtype list: a list of field names.
+ :return: list: a list of field names.
--- End diff --
`:return: a list of field names.`
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