DBInstance constructor
      
      DBInstance({ 
    
    
- bool? autoMinorVersionUpgrade,
- String? availabilityZone,
- int? backupRetentionPeriod,
- String? cACertificateIdentifier,
- String? dBClusterIdentifier,
- String? dBInstanceArn,
- String? dBInstanceClass,
- String? dBInstanceIdentifier,
- String? dBInstanceStatus,
- DBSubnetGroup? dBSubnetGroup,
- String? dbiResourceId,
- List<String> ? enabledCloudwatchLogsExports,
- Endpoint? endpoint,
- String? engine,
- String? engineVersion,
- DateTime? instanceCreateTime,
- String? kmsKeyId,
- DateTime? latestRestorableTime,
- PendingModifiedValues? pendingModifiedValues,
- String? preferredBackupWindow,
- String? preferredMaintenanceWindow,
- int? promotionTier,
- bool? publiclyAccessible,
- List<DBInstanceStatusInfo> ? statusInfos,
- bool? storageEncrypted,
- List<VpcSecurityGroupMembership> ? vpcSecurityGroups,
Implementation
DBInstance({
  this.autoMinorVersionUpgrade,
  this.availabilityZone,
  this.backupRetentionPeriod,
  this.cACertificateIdentifier,
  this.dBClusterIdentifier,
  this.dBInstanceArn,
  this.dBInstanceClass,
  this.dBInstanceIdentifier,
  this.dBInstanceStatus,
  this.dBSubnetGroup,
  this.dbiResourceId,
  this.enabledCloudwatchLogsExports,
  this.endpoint,
  this.engine,
  this.engineVersion,
  this.instanceCreateTime,
  this.kmsKeyId,
  this.latestRestorableTime,
  this.pendingModifiedValues,
  this.preferredBackupWindow,
  this.preferredMaintenanceWindow,
  this.promotionTier,
  this.publiclyAccessible,
  this.statusInfos,
  this.storageEncrypted,
  this.vpcSecurityGroups,
});