func toMap(i interface{}) (map[string]interface{}, bool) {
switch v := i.(type) {
//case M:
// return map[string]interface{}(v), true
case map[string]interface{}:
return v, true
}
return r.StructToMap(i)
}
func toMap(i interface{}) (m map[string]interface{}, ok bool) {
switch v := i.(type) {
case map[string]interface{}:
m, ok = v, true
default:
m, ok = r.StructToMap(i)
}
return
}