1. For spec we were including some extra stuff in the parameter
specification:
{:description "",
:in "formData",
:name "file",
:properties {"bytes" {:format "byte", :type "string"},
"content-type" {:type "string"},
"filename" {:type "string"}},
:required ["filename" "content-type" "bytes"],
:type "file"}
2. For malli the :type changed from "file" to "string" because of
openapi changes. Now openapi and swagger both get the right type.
3. Test for swagger multipart support
Leave out swagger-data when `:form`, but no `:body` parameters, are
defined. If swagger-data is not omitted, order of parameters and
muuntaja middleware will matter.
It's possible to put the :keys keyword in the namespace of the keys one likes to
destructure. With that one can use symbols in the vector again. One advantage of
having symbols is, that Cursive grays them out if not used. I found two
occurrences of unused destructured keys.
