FastAdUnits.fromJson constructor
Implementation
factory FastAdUnits.fromJson(Map<String, dynamic>? json) {
if (json == null) return const FastAdUnits();
return FastAdUnits(
high: json['high'] as String?,
medium: json['medium'] as String?,
low: json['low'] as String?,
extra: (json['extra'] as Map<String, dynamic>? ?? {})
.map((key, value) => MapEntry(key, value as String)),
);
}