copyWith method
Implementation
SetSupergroupUsername copyWith({
  int? supergroupId,
  String? username,
}) =>
    SetSupergroupUsername(
      supergroupId: supergroupId ?? this.supergroupId,
      username: username ?? this.username,
    );SetSupergroupUsername copyWith({
  int? supergroupId,
  String? username,
}) =>
    SetSupergroupUsername(
      supergroupId: supergroupId ?? this.supergroupId,
      username: username ?? this.username,
    );