SourceDBParameterGroupIdentifier: [required] The identifier or ARN for the source DB parameter group. For information about creating an ARN, see Constructing an ARN for Amazon RDS
in the Amazon RDS User Guide.
Constraints:
Must specify a valid DB parameter group.
TargetDBParameterGroupIdentifier: [required] The identifier for the copied DB parameter group.
Constraints:
Can't be null, empty, or blank
Must contain from 1 to 255 letters, numbers, or hyphens
First character must be a letter
Can't end with a hyphen or contain two consecutive hyphens
Example: my-db-parameter-group
TargetDBParameterGroupDescription: [required] A description for the copied DB parameter group.