AWS SDK for .NET Documentation
Parameters Property
AmazonAmazon.RDS.ModelModifyDBParameterGroupRequestParameters Did this page help you?   Yes   No    Tell us about it...
An array of parameter names, values, and the apply method for the parameter update. At least one parameter name, value, and apply method must be supplied; subsequent arguments are optional. A maximum of 20 parameters may be modified in a single request. Valid Values (for the application method): immediate | pending-reboot
Note:
You can use the immediate value with dynamic parameters only. You can use the pending-reboot value for both dynamic and static parameters, and changes are applied when DB instance reboots.
Declaration Syntax
C#
public List<Parameter> Parameters { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)