code: @Override
      public ResetDBParameterGroupResult resetDBParameterGroup(ResetDBParameterGroupRequest request) {
          request = beforeClientExecution(request);
          return executeResetDBParameterGroup(request);
      }
docs: <p>
  Modifies the parameters of a DB parameter group to the engine/system default value. To reset specific parameters,
  provide a list of the following: <code>ParameterName</code> and <code>ApplyMethod</code>. To reset the entire DB
  parameter group, specify the <code>DBParameterGroup</code> name and <code>ResetAllParameters</code> parameters.
  When resetting the entire group, dynamic parameters are updated immediately and static parameters are set to
  <code>pending-reboot</code> to take effect on the next DB instance restart or <code>RebootDBInstance</code>
  request.
  </p>
  
  @param resetDBParameterGroupRequest
  @return Result of the ResetDBParameterGroup operation returned by the service.
  @throws InvalidDBParameterGroupStateException
  The DB parameter group is in use or is in an invalid state. If you are attempting to delete the parameter
  group, you cannot delete it when the parameter group is in this state.
  @throws DBParameterGroupNotFoundException
  <i>DBParameterGroupName</i> does not refer to an existing DB parameter group.
  @sample AmazonNeptune.ResetDBParameterGroup
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/neptune-2014-10-31/ResetDBParameterGroup" target="_top">AWS
  API Documentation</a>