code: @Override
      public ListGroupMembershipsResult listGroupMemberships(ListGroupMembershipsRequest request) {
          request = beforeClientExecution(request);
          return executeListGroupMemberships(request);
      }
docs: <p>
  Lists member users in a group.
  </p>
  <p>
  The permissions resource is
  <code>arn:aws:quicksight:us-east-1:<i>&lt;aws-account-id&gt;</i>:group/default/<i>&lt;group-name&gt;</i> </code>.
  </p>
  <p>
  The response is a list of group member objects.
  </p>
  <p>
  <b>CLI Sample:</b>
  </p>
  <p>
  <code>aws quicksight list-group-memberships -\-aws-account-id=111122223333 -\-namespace=default </code>
  </p>
  
  @param listGroupMembershipsRequest
  @return Result of the ListGroupMemberships operation returned by the service.
  @throws AccessDeniedException
  You don't have access to this. The provided credentials couldn't be validated. You might not be
  authorized to carry out the request. Ensure that your account is authorized to use the Amazon QuickSight
  service, that your policies have the correct permissions, and that you are using the correct access keys.
  @throws InvalidParameterValueException
  One or more parameters don't have a valid value.
  @throws ResourceNotFoundException
  One or more resources can't be found.
  @throws ThrottlingException
  Access is throttled.
  @throws InvalidNextTokenException
  The <code>NextToken</code> value isn't valid.
  @throws PreconditionNotMetException
  One or more preconditions aren't met.
  @throws InternalFailureException
  An internal failure occurred.
  @throws ResourceUnavailableException
  This resource is currently unavailable.
  @sample AmazonQuickSight.ListGroupMemberships
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/quicksight-2018-04-01/ListGroupMemberships"
  target="_top">AWS API Documentation</a>