[jira] [Created] (FLINK-20016) Support TimestampAssigner and WatermarkGenerator for Python DataStream API.

[Shang Yuanchun (Jira)]

Shuiqiang Chen created FLINK-20016:
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             Summary: Support TimestampAssigner and WatermarkGenerator for Python DataStream API.
                 Key: FLINK-20016
                 URL: https://issues.apache.org/jira/browse/FLINK-20016
             Project: Flink
          Issue Type: Improvement
          Components: API / Python
            Reporter: Shuiqiang Chen
             Fix For: 1.12.0






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