[MINOR][DOC] Remove parenthesis in readStream() on kafka structured streaming doc
There is a typo in http://spark.apache.org/docs/latest/structured-streaming-kafka-integration.html#creating-a-kafka-source-stream , python example n1 uses `readStream()` instead of `readStream` Just removed the parenthesis. Author: manugarri <manuel.garrido.pena@gmail.com> Closes #16836 from manugarri/fix_kafka_python_doc.
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@ -90,7 +90,7 @@ ds3.selectExpr("CAST(key AS STRING)", "CAST(value AS STRING)")
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# Subscribe to 1 topic
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ds1 = spark
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.readStream()
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.readStream
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.format("kafka")
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.option("kafka.bootstrap.servers", "host1:port1,host2:port2")
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.option("subscribe", "topic1")
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@ -108,7 +108,7 @@ ds2.selectExpr("CAST(key AS STRING)", "CAST(value AS STRING)")
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# Subscribe to a pattern
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ds3 = spark
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.readStream()
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.readStream
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.format("kafka")
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.option("kafka.bootstrap.servers", "host1:port1,host2:port2")
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.option("subscribePattern", "topic.*")
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