Returns a list of DBParameterGroup descriptions. If a DBParameterGroupName is specified, the list will contain only the description of the specified DB parameter group.
DBParameterGroupName: The name of a specific DB parameter group to return details for.
Constraints:
If supplied, must match the name of an existing DBClusterParameterGroup.
Filters: This parameter isn't currently supported.
MaxRecords: The maximum number of records to include in the response. If more records exist than the specified MaxRecords value, a pagination token called a marker is included in the response so that you can retrieve the remaining results.
Default: 100
Constraints: Minimum 20, maximum 100.
Marker: An optional pagination token provided by a previous describe_db_parameter_groups
request. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by MaxRecords.