seijin 2f26812982 [Swift] Add option parameter to select response queue (#4591)
* Add queue parameter to API

* Apply queue to response function argument

* Update petstore sample

* Update all sample projects

Run ./bin/swift4-all.sh then remove unrelated diff.

* Refactor variable name

Rename queue to apiResponseQueue, because apiResponseQueue is more clear for explaining the context.
2019-11-26 11:56:17 +08:00
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