[chore] getting error for this in integ tests..

[hughesjj]

Fixes issues seen in build

         	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -52,3 +52,3 @@
        	            	   (string) (len=5) "batch": (map[string]interface {}) (len=1) {
        	            	-   (string) (len=13) "metadata_keys": ([]string) (len=1) {
        	            	+   (string) (len=13) "metadata_keys": ([]interface {}) (len=1) {
        	            	     (string) (len=10) "X-SF-Token"
        	Test:       	TestDefaultGatewayConfig/127.2.3.4