Port over API bits from #962 (#965)

api/error.gen.go

@@ -1,8 +1,6 @@
 // Code generated by "make api"; DO NOT EDIT.
 package api
 
-import "bytes"
-
 type Error struct {
 	Kind    string        `json:"kind,omitempty"`
 	Op      string        `json:"op,omitempty"`
@@ -11,15 +9,3 @@ type Error struct {
 
 	response *Response
 }
-
-func (n Error) ResponseBody() *bytes.Buffer {
-	return n.response.Body
-}
-
-func (n Error) ResponseMap() map[string]interface{} {
-	return n.response.Map
-}
-
-func (n Error) ResponseStatus() int {
-	return n.response.HttpResponse().StatusCode
-}