toJson method
Serializes to the shape the hosted page's credentials query param
expects. The provider discriminator is fixed: Persona is the only
provider this SDK and the hosted page accept.
Implementation
Map<String, Object?> toJson() {
return <String, Object?>{
'provider': _provider,
'inquiryId': inquiryId,
if (sessionToken != null) 'sessionToken': sessionToken,
};
}