https://firebase.google.com/docs/reference/js/messaging_.fcmoptions
FcmOptions interface | Firebase JavaScript API reference
javascript apiinterfacefirebasereference
https://firebase.google.cn/docs/reference/admin/java/reference/com/google/firebase/messaging/FcmOptions
FcmOptions | Firebase
firebase
https://it.mathworks.com/help/fuzzy/clustering.fcmoptions.html
FCMOptions - FCM clustering options - MATLAB
Use an fcmOptions object to specify options for clustering data using the fcm function.
fcmclusteringoptionsmatlab
https://firebase.google.com/docs/reference/admin/dotnet/class/firebase-admin/messaging/fcm-options
FirebaseAdmin.Messaging.FcmOptions Class Reference
messagingclassreference
https://firebase.google.cn/docs/reference/admin/node/firebase-admin.messaging.fcmoptions
FcmOptions interface | Firebase Admin SDK
interfacefirebaseadminsdk
https://firebase.google.com/docs/reference/admin/dotnet/class/firebase-admin/messaging/fcm-options?authuser=7
FirebaseAdmin.Messaging.FcmOptions Class Reference
messagingclassreference