Deletes a specified DBParameterGroup. The DBParameterGroup to be deleted can't be associated with any DB instances.
See https://www.paws-r-sdk.com/docs/neptune_delete_db_parameter_group/ for full documentation.
neptune_delete_db_parameter_group(DBParameterGroupName)
[required] The name of the DB parameter group.
Constraints:
Must be the name of an existing DB parameter group
You can't delete a default DB parameter group
Cannot be associated with any DB instances