code: @Override
      public CreateEndpointGroupResult createEndpointGroup(CreateEndpointGroupRequest request) {
          request = beforeClientExecution(request);
          return executeCreateEndpointGroup(request);
      }
docs: <p>
  Create an endpoint group for the specified listener. An endpoint group is a collection of endpoints in one AWS
  Region. To see an AWS CLI example of creating an endpoint group, scroll down to <b>Example</b>.
  </p>
  
  @param createEndpointGroupRequest
  @return Result of the CreateEndpointGroup operation returned by the service.
  @throws AcceleratorNotFoundException
  The accelerator that you specified doesn't exist.
  @throws EndpointGroupAlreadyExistsException
  The endpoint group that you specified already exists.
  @throws ListenerNotFoundException
  The listener that you specified doesn't exist.
  @throws InternalServiceErrorException
  There was an internal error for AWS Global Accelerator.
  @throws InvalidArgumentException
  An argument that you specified is invalid.
  @throws LimitExceededException
  Processing your request would cause you to exceed an AWS Global Accelerator limit.
  @sample AWSGlobalAccelerator.CreateEndpointGroup
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/globalaccelerator-2018-08-08/CreateEndpointGroup"
  target="_top">AWS API Documentation</a>