[wp-trac] [WordPress Trac] #47567: Add documentation to spy-rest-server test include

[WordPress Trac]

#47567: Add documentation to spy-rest-server test include
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 Reporter:  andizer           |      Owner:  (none)
     Type:  enhancement       |     Status:  new
 Priority:  normal            |  Milestone:  Awaiting Review
Component:  Build/Test Tools  |    Version:
 Severity:  normal            |   Keywords:
  Focuses:  docs              |
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 A couple of methods are missing documentation. So I've added the docs.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47567>
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