1 files changed, 609 insertions, 0 deletions
diff --git a/vendor/maunium.net/go/mautrix/event/content.go b/vendor/maunium.net/go/mautrix/event/content.go
new file mode 100644
index 0000000..882d336
--- /dev/null
+++ b/vendor/maunium.net/go/mautrix/event/content.go
@@ -0,0 +1,609 @@
+// Copyright (c) 2021 Tulir Asokan
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package event
+
+import (
+	"encoding/gob"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"reflect"
+)
+
+// TypeMap is a mapping from event type to the content struct type.
+// This is used by Content.ParseRaw() for creating the correct type of struct.
+var TypeMap = map[Type]reflect.Type{
+	StateMember:            reflect.TypeOf(MemberEventContent{}),
+	StatePowerLevels:       reflect.TypeOf(PowerLevelsEventContent{}),
+	StateCanonicalAlias:    reflect.TypeOf(CanonicalAliasEventContent{}),
+	StateRoomName:          reflect.TypeOf(RoomNameEventContent{}),
+	StateRoomAvatar:        reflect.TypeOf(RoomAvatarEventContent{}),
+	StateServerACL:         reflect.TypeOf(ServerACLEventContent{}),
+	StateTopic:             reflect.TypeOf(TopicEventContent{}),
+	StateTombstone:         reflect.TypeOf(TombstoneEventContent{}),
+	StateCreate:            reflect.TypeOf(CreateEventContent{}),
+	StateJoinRules:         reflect.TypeOf(JoinRulesEventContent{}),
+	StateHistoryVisibility: reflect.TypeOf(HistoryVisibilityEventContent{}),
+	StateGuestAccess:       reflect.TypeOf(GuestAccessEventContent{}),
+	StatePinnedEvents:      reflect.TypeOf(PinnedEventsEventContent{}),
+	StatePolicyRoom:        reflect.TypeOf(ModPolicyContent{}),
+	StatePolicyServer:      reflect.TypeOf(ModPolicyContent{}),
+	StatePolicyUser:        reflect.TypeOf(ModPolicyContent{}),
+	StateEncryption:        reflect.TypeOf(EncryptionEventContent{}),
+	StateBridge:            reflect.TypeOf(BridgeEventContent{}),
+	StateHalfShotBridge:    reflect.TypeOf(BridgeEventContent{}),
+	StateSpaceParent:       reflect.TypeOf(SpaceParentEventContent{}),
+	StateSpaceChild:        reflect.TypeOf(SpaceChildEventContent{}),
+	StateInsertionMarker:   reflect.TypeOf(InsertionMarkerContent{}),
+
+	StateLegacyPolicyRoom:     reflect.TypeOf(ModPolicyContent{}),
+	StateLegacyPolicyServer:   reflect.TypeOf(ModPolicyContent{}),
+	StateLegacyPolicyUser:     reflect.TypeOf(ModPolicyContent{}),
+	StateUnstablePolicyRoom:   reflect.TypeOf(ModPolicyContent{}),
+	StateUnstablePolicyServer: reflect.TypeOf(ModPolicyContent{}),
+	StateUnstablePolicyUser:   reflect.TypeOf(ModPolicyContent{}),
+
+	StateElementFunctionalMembers: reflect.TypeOf(ElementFunctionalMembersContent{}),
+
+	EventMessage:   reflect.TypeOf(MessageEventContent{}),
+	EventSticker:   reflect.TypeOf(MessageEventContent{}),
+	EventEncrypted: reflect.TypeOf(EncryptedEventContent{}),
+	EventRedaction: reflect.TypeOf(RedactionEventContent{}),
+	EventReaction:  reflect.TypeOf(ReactionEventContent{}),
+
+	EventUnstablePollStart:    reflect.TypeOf(PollStartEventContent{}),
+	EventUnstablePollResponse: reflect.TypeOf(PollResponseEventContent{}),
+
+	BeeperMessageStatus: reflect.TypeOf(BeeperMessageStatusEventContent{}),
+
+	AccountDataRoomTags:        reflect.TypeOf(TagEventContent{}),
+	AccountDataDirectChats:     reflect.TypeOf(DirectChatsEventContent{}),
+	AccountDataFullyRead:       reflect.TypeOf(FullyReadEventContent{}),
+	AccountDataIgnoredUserList: reflect.TypeOf(IgnoredUserListEventContent{}),
+	AccountDataMarkedUnread:    reflect.TypeOf(MarkedUnreadEventContent{}),
+	AccountDataBeeperMute:      reflect.TypeOf(BeeperMuteEventContent{}),
+
+	EphemeralEventTyping:   reflect.TypeOf(TypingEventContent{}),
+	EphemeralEventReceipt:  reflect.TypeOf(ReceiptEventContent{}),
+	EphemeralEventPresence: reflect.TypeOf(PresenceEventContent{}),
+
+	InRoomVerificationReady:  reflect.TypeOf(VerificationReadyEventContent{}),
+	InRoomVerificationStart:  reflect.TypeOf(VerificationStartEventContent{}),
+	InRoomVerificationDone:   reflect.TypeOf(VerificationDoneEventContent{}),
+	InRoomVerificationCancel: reflect.TypeOf(VerificationCancelEventContent{}),
+
+	InRoomVerificationAccept: reflect.TypeOf(VerificationAcceptEventContent{}),
+	InRoomVerificationKey:    reflect.TypeOf(VerificationKeyEventContent{}),
+	InRoomVerificationMAC:    reflect.TypeOf(VerificationMACEventContent{}),
+
+	ToDeviceRoomKey:          reflect.TypeOf(RoomKeyEventContent{}),
+	ToDeviceForwardedRoomKey: reflect.TypeOf(ForwardedRoomKeyEventContent{}),
+	ToDeviceRoomKeyRequest:   reflect.TypeOf(RoomKeyRequestEventContent{}),
+	ToDeviceEncrypted:        reflect.TypeOf(EncryptedEventContent{}),
+	ToDeviceRoomKeyWithheld:  reflect.TypeOf(RoomKeyWithheldEventContent{}),
+	ToDeviceSecretRequest:    reflect.TypeOf(SecretRequestEventContent{}),
+	ToDeviceSecretSend:       reflect.TypeOf(SecretSendEventContent{}),
+	ToDeviceDummy:            reflect.TypeOf(DummyEventContent{}),
+
+	ToDeviceVerificationRequest: reflect.TypeOf(VerificationRequestEventContent{}),
+	ToDeviceVerificationReady:   reflect.TypeOf(VerificationReadyEventContent{}),
+	ToDeviceVerificationStart:   reflect.TypeOf(VerificationStartEventContent{}),
+	ToDeviceVerificationDone:    reflect.TypeOf(VerificationDoneEventContent{}),
+	ToDeviceVerificationCancel:  reflect.TypeOf(VerificationCancelEventContent{}),
+
+	ToDeviceVerificationAccept: reflect.TypeOf(VerificationAcceptEventContent{}),
+	ToDeviceVerificationKey:    reflect.TypeOf(VerificationKeyEventContent{}),
+	ToDeviceVerificationMAC:    reflect.TypeOf(VerificationMACEventContent{}),
+
+	ToDeviceOrgMatrixRoomKeyWithheld: reflect.TypeOf(RoomKeyWithheldEventContent{}),
+
+	ToDeviceBeeperRoomKeyAck: reflect.TypeOf(BeeperRoomKeyAckEventContent{}),
+
+	CallInvite:       reflect.TypeOf(CallInviteEventContent{}),
+	CallCandidates:   reflect.TypeOf(CallCandidatesEventContent{}),
+	CallAnswer:       reflect.TypeOf(CallAnswerEventContent{}),
+	CallReject:       reflect.TypeOf(CallRejectEventContent{}),
+	CallSelectAnswer: reflect.TypeOf(CallSelectAnswerEventContent{}),
+	CallNegotiate:    reflect.TypeOf(CallNegotiateEventContent{}),
+	CallHangup:       reflect.TypeOf(CallHangupEventContent{}),
+}
+
+// Content stores the content of a Matrix event.
+//
+// By default, the raw JSON bytes are stored in VeryRaw and parsed into a map[string]interface{} in the Raw field.
+// Additionally, you can call ParseRaw with the correct event type to parse the (VeryRaw) content into a nicer struct,
+// which you can then access from Parsed or via the helper functions.
+//
+// When being marshaled into JSON, the data in Parsed will be marshaled first and then recursively merged
+// with the data in Raw. Values in Raw are preferred, but nested objects will be recursed into before merging,
+// rather than overriding the whole object with the one in Raw).
+// If one of them is nil, the only the other is used. If both (Parsed and Raw) are nil, VeryRaw is used instead.
+type Content struct {
+	VeryRaw json.RawMessage
+	Raw     map[string]interface{}
+	Parsed  interface{}
+}
+
+type Relatable interface {
+	GetRelatesTo() *RelatesTo
+	OptionalGetRelatesTo() *RelatesTo
+	SetRelatesTo(rel *RelatesTo)
+}
+
+func (content *Content) UnmarshalJSON(data []byte) error {
+	content.VeryRaw = data
+	err := json.Unmarshal(data, &content.Raw)
+	return err
+}
+
+func (content *Content) MarshalJSON() ([]byte, error) {
+	if content.Raw == nil {
+		if content.Parsed == nil {
+			if content.VeryRaw == nil {
+				return []byte("{}"), nil
+			}
+			return content.VeryRaw, nil
+		}
+		return json.Marshal(content.Parsed)
+	} else if content.Parsed != nil {
+		// TODO this whole thing is incredibly hacky
+		// It needs to produce JSON, where:
+		// * content.Parsed is applied after content.Raw
+		// * MarshalJSON() is respected inside content.Parsed
+		// * Custom field inside nested objects of content.Raw are preserved,
+		//   even if content.Parsed contains the higher-level objects.
+		// * content.Raw is not modified
+
+		unparsed, err := json.Marshal(content.Parsed)
+		if err != nil {
+			return nil, err
+		}
+
+		var rawParsed map[string]interface{}
+		err = json.Unmarshal(unparsed, &rawParsed)
+		if err != nil {
+			return nil, err
+		}
+
+		output := make(map[string]interface{})
+		for key, value := range content.Raw {
+			output[key] = value
+		}
+
+		mergeMaps(output, rawParsed)
+		return json.Marshal(output)
+	}
+	return json.Marshal(content.Raw)
+}
+
+// Deprecated: use errors.Is directly
+func IsUnsupportedContentType(err error) bool {
+	return errors.Is(err, ErrUnsupportedContentType)
+}
+
+var ErrContentAlreadyParsed = errors.New("content is already parsed")
+var ErrUnsupportedContentType = errors.New("unsupported event type")
+
+func (content *Content) ParseRaw(evtType Type) error {
+	if content.Parsed != nil {
+		return ErrContentAlreadyParsed
+	}
+	structType, ok := TypeMap[evtType]
+	if !ok {
+		return fmt.Errorf("%w %s", ErrUnsupportedContentType, evtType.Repr())
+	}
+	content.Parsed = reflect.New(structType).Interface()
+	return json.Unmarshal(content.VeryRaw, &content.Parsed)
+}
+
+func mergeMaps(into, from map[string]interface{}) {
+	for key, newValue := range from {
+		existingValue, ok := into[key]
+		if !ok {
+			into[key] = newValue
+			continue
+		}
+		existingValueMap, okEx := existingValue.(map[string]interface{})
+		newValueMap, okNew := newValue.(map[string]interface{})
+		if okEx && okNew {
+			mergeMaps(existingValueMap, newValueMap)
+		} else {
+			into[key] = newValue
+		}
+	}
+}
+
+func init() {
+	gob.Register(&MemberEventContent{})
+	gob.Register(&PowerLevelsEventContent{})
+	gob.Register(&CanonicalAliasEventContent{})
+	gob.Register(&EncryptionEventContent{})
+	gob.Register(&BridgeEventContent{})
+	gob.Register(&SpaceChildEventContent{})
+	gob.Register(&SpaceParentEventContent{})
+	gob.Register(&ElementFunctionalMembersContent{})
+	gob.Register(&RoomNameEventContent{})
+	gob.Register(&RoomAvatarEventContent{})
+	gob.Register(&TopicEventContent{})
+	gob.Register(&TombstoneEventContent{})
+	gob.Register(&CreateEventContent{})
+	gob.Register(&JoinRulesEventContent{})
+	gob.Register(&HistoryVisibilityEventContent{})
+	gob.Register(&GuestAccessEventContent{})
+	gob.Register(&PinnedEventsEventContent{})
+	gob.Register(&MessageEventContent{})
+	gob.Register(&MessageEventContent{})
+	gob.Register(&EncryptedEventContent{})
+	gob.Register(&RedactionEventContent{})
+	gob.Register(&ReactionEventContent{})
+	gob.Register(&TagEventContent{})
+	gob.Register(&DirectChatsEventContent{})
+	gob.Register(&FullyReadEventContent{})
+	gob.Register(&IgnoredUserListEventContent{})
+	gob.Register(&TypingEventContent{})
+	gob.Register(&ReceiptEventContent{})
+	gob.Register(&PresenceEventContent{})
+	gob.Register(&RoomKeyEventContent{})
+	gob.Register(&ForwardedRoomKeyEventContent{})
+	gob.Register(&RoomKeyRequestEventContent{})
+	gob.Register(&RoomKeyWithheldEventContent{})
+}
+
+func CastOrDefault[T any](content *Content) *T {
+	casted, ok := content.Parsed.(*T)
+	if ok {
+		return casted
+	}
+	casted2, _ := content.Parsed.(T)
+	return &casted2
+}
+
+// Helper cast functions below
+
+func (content *Content) AsMember() *MemberEventContent {
+	casted, ok := content.Parsed.(*MemberEventContent)
+	if !ok {
+		return &MemberEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsPowerLevels() *PowerLevelsEventContent {
+	casted, ok := content.Parsed.(*PowerLevelsEventContent)
+	if !ok {
+		return &PowerLevelsEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCanonicalAlias() *CanonicalAliasEventContent {
+	casted, ok := content.Parsed.(*CanonicalAliasEventContent)
+	if !ok {
+		return &CanonicalAliasEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsRoomName() *RoomNameEventContent {
+	casted, ok := content.Parsed.(*RoomNameEventContent)
+	if !ok {
+		return &RoomNameEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsRoomAvatar() *RoomAvatarEventContent {
+	casted, ok := content.Parsed.(*RoomAvatarEventContent)
+	if !ok {
+		return &RoomAvatarEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsTopic() *TopicEventContent {
+	casted, ok := content.Parsed.(*TopicEventContent)
+	if !ok {
+		return &TopicEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsTombstone() *TombstoneEventContent {
+	casted, ok := content.Parsed.(*TombstoneEventContent)
+	if !ok {
+		return &TombstoneEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCreate() *CreateEventContent {
+	casted, ok := content.Parsed.(*CreateEventContent)
+	if !ok {
+		return &CreateEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsJoinRules() *JoinRulesEventContent {
+	casted, ok := content.Parsed.(*JoinRulesEventContent)
+	if !ok {
+		return &JoinRulesEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsHistoryVisibility() *HistoryVisibilityEventContent {
+	casted, ok := content.Parsed.(*HistoryVisibilityEventContent)
+	if !ok {
+		return &HistoryVisibilityEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsGuestAccess() *GuestAccessEventContent {
+	casted, ok := content.Parsed.(*GuestAccessEventContent)
+	if !ok {
+		return &GuestAccessEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsPinnedEvents() *PinnedEventsEventContent {
+	casted, ok := content.Parsed.(*PinnedEventsEventContent)
+	if !ok {
+		return &PinnedEventsEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsEncryption() *EncryptionEventContent {
+	casted, ok := content.Parsed.(*EncryptionEventContent)
+	if !ok {
+		return &EncryptionEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsBridge() *BridgeEventContent {
+	casted, ok := content.Parsed.(*BridgeEventContent)
+	if !ok {
+		return &BridgeEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsSpaceChild() *SpaceChildEventContent {
+	casted, ok := content.Parsed.(*SpaceChildEventContent)
+	if !ok {
+		return &SpaceChildEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsSpaceParent() *SpaceParentEventContent {
+	casted, ok := content.Parsed.(*SpaceParentEventContent)
+	if !ok {
+		return &SpaceParentEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsElementFunctionalMembers() *ElementFunctionalMembersContent {
+	casted, ok := content.Parsed.(*ElementFunctionalMembersContent)
+	if !ok {
+		return &ElementFunctionalMembersContent{}
+	}
+	return casted
+}
+func (content *Content) AsMessage() *MessageEventContent {
+	casted, ok := content.Parsed.(*MessageEventContent)
+	if !ok {
+		return &MessageEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsEncrypted() *EncryptedEventContent {
+	casted, ok := content.Parsed.(*EncryptedEventContent)
+	if !ok {
+		return &EncryptedEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsRedaction() *RedactionEventContent {
+	casted, ok := content.Parsed.(*RedactionEventContent)
+	if !ok {
+		return &RedactionEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsReaction() *ReactionEventContent {
+	casted, ok := content.Parsed.(*ReactionEventContent)
+	if !ok {
+		return &ReactionEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsTag() *TagEventContent {
+	casted, ok := content.Parsed.(*TagEventContent)
+	if !ok {
+		return &TagEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsDirectChats() *DirectChatsEventContent {
+	casted, ok := content.Parsed.(*DirectChatsEventContent)
+	if !ok {
+		return &DirectChatsEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsFullyRead() *FullyReadEventContent {
+	casted, ok := content.Parsed.(*FullyReadEventContent)
+	if !ok {
+		return &FullyReadEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsIgnoredUserList() *IgnoredUserListEventContent {
+	casted, ok := content.Parsed.(*IgnoredUserListEventContent)
+	if !ok {
+		return &IgnoredUserListEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsMarkedUnread() *MarkedUnreadEventContent {
+	casted, ok := content.Parsed.(*MarkedUnreadEventContent)
+	if !ok {
+		return &MarkedUnreadEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsTyping() *TypingEventContent {
+	casted, ok := content.Parsed.(*TypingEventContent)
+	if !ok {
+		return &TypingEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsReceipt() *ReceiptEventContent {
+	casted, ok := content.Parsed.(*ReceiptEventContent)
+	if !ok {
+		return &ReceiptEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsPresence() *PresenceEventContent {
+	casted, ok := content.Parsed.(*PresenceEventContent)
+	if !ok {
+		return &PresenceEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsRoomKey() *RoomKeyEventContent {
+	casted, ok := content.Parsed.(*RoomKeyEventContent)
+	if !ok {
+		return &RoomKeyEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsForwardedRoomKey() *ForwardedRoomKeyEventContent {
+	casted, ok := content.Parsed.(*ForwardedRoomKeyEventContent)
+	if !ok {
+		return &ForwardedRoomKeyEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsRoomKeyRequest() *RoomKeyRequestEventContent {
+	casted, ok := content.Parsed.(*RoomKeyRequestEventContent)
+	if !ok {
+		return &RoomKeyRequestEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsRoomKeyWithheld() *RoomKeyWithheldEventContent {
+	casted, ok := content.Parsed.(*RoomKeyWithheldEventContent)
+	if !ok {
+		return &RoomKeyWithheldEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCallInvite() *CallInviteEventContent {
+	casted, ok := content.Parsed.(*CallInviteEventContent)
+	if !ok {
+		return &CallInviteEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCallCandidates() *CallCandidatesEventContent {
+	casted, ok := content.Parsed.(*CallCandidatesEventContent)
+	if !ok {
+		return &CallCandidatesEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCallAnswer() *CallAnswerEventContent {
+	casted, ok := content.Parsed.(*CallAnswerEventContent)
+	if !ok {
+		return &CallAnswerEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCallReject() *CallRejectEventContent {
+	casted, ok := content.Parsed.(*CallRejectEventContent)
+	if !ok {
+		return &CallRejectEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCallSelectAnswer() *CallSelectAnswerEventContent {
+	casted, ok := content.Parsed.(*CallSelectAnswerEventContent)
+	if !ok {
+		return &CallSelectAnswerEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCallNegotiate() *CallNegotiateEventContent {
+	casted, ok := content.Parsed.(*CallNegotiateEventContent)
+	if !ok {
+		return &CallNegotiateEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsCallHangup() *CallHangupEventContent {
+	casted, ok := content.Parsed.(*CallHangupEventContent)
+	if !ok {
+		return &CallHangupEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsModPolicy() *ModPolicyContent {
+	casted, ok := content.Parsed.(*ModPolicyContent)
+	if !ok {
+		return &ModPolicyContent{}
+	}
+	return casted
+}
+func (content *Content) AsVerificationRequest() *VerificationRequestEventContent {
+	casted, ok := content.Parsed.(*VerificationRequestEventContent)
+	if !ok {
+		return &VerificationRequestEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsVerificationReady() *VerificationReadyEventContent {
+	casted, ok := content.Parsed.(*VerificationReadyEventContent)
+	if !ok {
+		return &VerificationReadyEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsVerificationStart() *VerificationStartEventContent {
+	casted, ok := content.Parsed.(*VerificationStartEventContent)
+	if !ok {
+		return &VerificationStartEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsVerificationDone() *VerificationDoneEventContent {
+	casted, ok := content.Parsed.(*VerificationDoneEventContent)
+	if !ok {
+		return &VerificationDoneEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsVerificationCancel() *VerificationCancelEventContent {
+	casted, ok := content.Parsed.(*VerificationCancelEventContent)
+	if !ok {
+		return &VerificationCancelEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsVerificationAccept() *VerificationAcceptEventContent {
+	casted, ok := content.Parsed.(*VerificationAcceptEventContent)
+	if !ok {
+		return &VerificationAcceptEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsVerificationKey() *VerificationKeyEventContent {
+	casted, ok := content.Parsed.(*VerificationKeyEventContent)
+	if !ok {
+		return &VerificationKeyEventContent{}
+	}
+	return casted
+}
+func (content *Content) AsVerificationMAC() *VerificationMACEventContent {
+	casted, ok := content.Parsed.(*VerificationMACEventContent)
+	if !ok {
+		return &VerificationMACEventContent{}
+	}
+	return casted
+}