<itemvalue="The [FirebaseApp] instance to which this [FirebaseDatabase] belongs. If null, the default [FirebaseApp] is used. The [MethodChannel] used to communicate with the native plugin"/>
<itemvalue="{@template cloud_firestore.collection_reference.doc} Returns a `DocumentReference` with the provided path. If no [path] is provided, an auto-generated ID is used. The unique key generated is prefixed with a client-generated timestamp so that the resulting list will be chronologically-sorted. {@endtemplate}"/>
<itemvalue="The [FirebaseApp] instance to which this [FirebaseDatabase] belongs. If null, the default [FirebaseApp] is used. The [MethodChannel] used to communicate with the native plugin"/>
<itemvalue="get doc by a empty id"/>
<itemvalue="test trigger a error by hand"/>
<itemvalue="fix: pop to black screen when auto exit the monitor page."/>