rewrite checkpoint

vendor/github.com/cheekybits/genny/examples/go-generate/gen-go-generate.go

@@ -0,0 +1,29 @@
+// This file was automatically generated by genny.
+// Any changes will be lost if this file is regenerated.
+// see https://github.com/cheekybits/genny
+
+package gogenerate
+
+type StringStringMap map[string]string
+
+func NewStringStringMap() map[string]string {
+	return make(map[string]string)
+}
+
+type StringIntMap map[string]int
+
+func NewStringIntMap() map[string]int {
+	return make(map[string]int)
+}
+
+type IntStringMap map[int]string
+
+func NewIntStringMap() map[int]string {
+	return make(map[int]string)
+}
+
+type IntIntMap map[int]int
+
+func NewIntIntMap() map[int]int {
+	return make(map[int]int)
+}