isSuggestion function
Returns true if object
is Suggestion, otherwise false.
Implementation
bool isSuggestion(final Map<String, dynamic>? object) {
if (object == null) return false;
if (object[r'$type'] == null) return false;
return object[r'$type'] ==
'app.bsky.unspecced.getTaggedSuggestions#suggestion';
}