Ec2Instance
constructor(additionalMasterSecurityGroups: List<String>? = null, additionalSlaveSecurityGroups: List<String>? = null, ec2AvailabilityZone: String? = null, ec2KeyName: String? = null, ec2SubnetId: String? = null, emrManagedMasterSecurityGroup: String? = null, emrManagedSlaveSecurityGroup: String? = null, iamInstanceProfile: String? = null, requestedEc2AvailabilityZones: List<String>? = null, requestedEc2SubnetIds: List<String>? = null, serviceAccessSecurityGroup: String? = null)