toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (default_ != null) 'default': default_!,
if (high != null) 'high': high!,
if (maxres != null) 'maxres': maxres!,
if (medium != null) 'medium': medium!,
if (standard != null) 'standard': standard!,
};