How to use ___Field_name method of generated Package

...421		switch field.Name {422		case "__typename":423			out.Values[i] = graphql.MarshalString("__Field")424		case "name":425			out.Values[i] = ec.___Field_name(field, obj)426		case "description":427			out.Values[i] = ec.___Field_description(field, obj)428		case "args":429			out.Values[i] = ec.___Field_args(field, obj)430		case "type":431			out.Values[i] = ec.___Field_type(field, obj)432		case "isDeprecated":433			out.Values[i] = ec.___Field_isDeprecated(field, obj)434		case "deprecationReason":435			out.Values[i] = ec.___Field_deprecationReason(field, obj)436		default:437			panic("unknown field " + strconv.Quote(field.Name))438		}439	}440	return out441}442func (ec *executionContext) ___Field_name(field graphql.CollectedField, obj *introspection.Field) graphql.Marshaler {443	res := obj.Name()444	return graphql.MarshalString(res)445}446func (ec *executionContext) ___Field_description(field graphql.CollectedField, obj *introspection.Field) graphql.Marshaler {447	res := obj.Description()448	if res == nil {449		return graphql.Null450	}451	return graphql.MarshalString(*res)452}453func (ec *executionContext) ___Field_args(field graphql.CollectedField, obj *introspection.Field) graphql.Marshaler {454	res := obj.Args()455	arr1 := graphql.Array{}456	for idx1 := range res {...

...300		switch field.Name {301		case "__typename":302			out.Values[i] = graphql.MarshalString("__Field")303		case "name":304			out.Values[i] = ec.___Field_name(field, obj)305		case "description":306			out.Values[i] = ec.___Field_description(field, obj)307		case "args":308			out.Values[i] = ec.___Field_args(field, obj)309		case "type":310			out.Values[i] = ec.___Field_type(field, obj)311		case "isDeprecated":312			out.Values[i] = ec.___Field_isDeprecated(field, obj)313		case "deprecationReason":314			out.Values[i] = ec.___Field_deprecationReason(field, obj)315		default:316			panic("unknown field " + strconv.Quote(field.Name))317		}318	}319	return out320}321func (ec *executionContext) ___Field_name(field graphql.CollectedField, obj *introspection.Field) graphql.Marshaler {322	res := obj.Name()323	return graphql.MarshalString(res)324}325func (ec *executionContext) ___Field_description(field graphql.CollectedField, obj *introspection.Field) graphql.Marshaler {326	res := obj.Description()327	if res == nil {328		return graphql.Null329	}330	return graphql.MarshalString(*res)331}332func (ec *executionContext) ___Field_args(field graphql.CollectedField, obj *introspection.Field) graphql.Marshaler {333	res := obj.Args()334	arr1 := graphql.Array{}335	for idx1 := range res {...

1import (2type T struct {3}4func main() {5	t := T{23, "skidoo"}6	s := reflect.ValueOf(&t).Elem()7	typeOfT := s.Type()8	for i := 0; i < s.NumField(); i++ {9		f := s.Field(i)10		fmt.Printf("%d: %s %s = %v11			typeOfT.Field(i).Name, f.Type(), f.Interface())12	}13}14import (15type T struct {16}17func main() {18	t := T{23, "skidoo"}19	s := reflect.ValueOf(&t).Elem()20	typeOfT := s.Type()21	for i := 0; i < s.NumField(); i++ {22		f := s.Field(i)23		fmt.Printf("%d: %s %s = %v24			typeOfT.Field(i).Name, f.Type(), f.Interface())25	}26}27import (28type T struct {29}30func main() {31	t := T{23, "skidoo"}32	s := reflect.ValueOf(&t).Elem()33	typeOfT := s.Type()34	for i := 0; i < s.NumField(); i++ {35		f := s.Field(i)36		fmt.Printf("%d: %s %s = %v37			typeOfT.Field(i).Name, f.Type(), f.Interface())38	}39}40import (41type T struct {42}43func main() {

1import "fmt"2func (___Field_name) ___Field_name() {}3func main() {4    fmt.Println("Hello, World!")5}6import "fmt"7func (___Field_name) ___Field_name() {}8func main() {9    fmt.Println("Hello, World!")10}11import "fmt"12func (___Field_name) ___Field_name() {}13func main() {14    fmt.Println("Hello, World!")15}16import "fmt"17func (___Field_name) ___Field_name() {}18func main() {19    fmt.Println("Hello, World!")20}21import "fmt"22func (___Field_name) ___Field_name() {}23func main() {24    fmt.Println("Hello, World!")25}26import "fmt"27func (___Field_name) ___Field_name() {}28func main() {29    fmt.Println("Hello, World!")30}31import "fmt"32func (___Field_name) ___Field_name() {}33func main() {34    fmt.Println("Hello, World!")35}36import "fmt"37func (___Field_name) ___Field_name() {}38func main() {39    fmt.Println("Hello, World!")40}41import "fmt"42func (___Field_name) ___Field_name() {}43func main() {44    fmt.Println("Hello, World!")45}46import "fmt"47func (___Field