WriteToDefaultStream is missing a test #1156
Description
The sample bigquerystorage_jsonstreamwriter_default seems to be missing a test.
https://github.com/googleapis/java-bigquerystorage/tree/master/samples/snippets/src
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The sample bigquerystorage_jsonstreamwriter_default seems to be missing a test.
https://github.com/googleapis/java-bigquerystorage/tree/master/samples/snippets/src