generateMetadata static method
Implementation
static String? generateMetadata(Map<String, dynamic>? map) {
map?.removeWhere(
(key, value) => value == null || (value is List && value.isEmpty));
if (map?.isEmpty ?? true) return null;
final metadata = MapUtils.parseMapDynamicHeaders(map!);
return metadata?.entries
.map((entry) =>
'${entry.key} ${base64.encode(utf8.encode(entry.value))}')
.join(',');
}