UploadMetadata.fromJson constructor
Implementation
factory UploadMetadata.fromJson(Map<String, dynamic> json) {
return UploadMetadata(
headersToInclude: (json['HeadersToInclude'] as Map<String, dynamic>?)
?.map((k, e) => MapEntry(k, e as String)),
url: json['Url'] as String?,
urlExpiry: json['UrlExpiry'] as String?,
);
}