anchor.diff:  < 200
   < Content-Type: application/json
   {
  -    \"{{type}}\": \"runtime_validation\",
  -    \"erlang\": \"{pass, [{\\\"Param\\\", \\\"Value\\\"}]}\"
  +    \"param\": {
  +        \"{{type}}\": \"runtime_validation\",
  +        \"erlang\": \"{pass, [{\\\"param\\\", Actual}]}\"
  +    }
   }
   "/utf8>>).
   
  
positive.code: {
      \"{{type}}\": \"runtime_validation\",
      \"erlang\": \"{not_equal,
                     {\\\"/body/{{runtime_validation}}\\\", false, true}
                    }\"
  }
  "/utf8>>).
  
negative.code:   {ok, {{200, []}, [
                      {"content-type", "application/json"}
                     ], <<"{
      \"param\": \"value\"
  }
  "/utf8>>}}.
  
  