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// Copyright 2023, 2025 The Forgejo Authors. All rights reserved.// SPDX-License-Identifier: MIT package forgefed import (	ap "github.com/go-ap/activitypub"	"github.com/valyala/fastjson") const ForgeFedNamespaceURI = "https://forgefed.org/ns" // GetItemByType instantiates a new ForgeFed object if the type matches// otherwise it defaults to existing activitypub package typer function.func GetItemByType(typ ap.ActivityVocabularyType) (ap.Item, error) {	switch typ {	case RepositoryType:		return RepositoryNew(""), nil	default:		return ap.GetItemByType(typ)	}} // JSONUnmarshalerFn is the function that will load the data from a fastjson.Value into an Item// that the go-ap/activitypub package doesn't know about.func JSONUnmarshalerFn(typ ap.ActivityVocabularyType, val *fastjson.Value, i ap.Item) error {	switch typ {	case RepositoryType:		return OnRepository(i, func(r *Repository) error {			return JSONLoadRepository(val, r)		})	default:		return nil	}} // NotEmpty is the function that checks if an object is emptyfunc NotEmpty(i ap.Item) bool {	if ap.IsNil(i) {		return false	}	switch i.GetType() {	case RepositoryType:		r, err := ToRepository(i)		if err != nil {			return false		}		return ap.NotEmpty(r.Actor)	default:		return ap.NotEmpty(i)	}}