code: @Override
      public GetDeploymentGroupResult getDeploymentGroup(GetDeploymentGroupRequest request) {
          request = beforeClientExecution(request);
          return executeGetDeploymentGroup(request);
      }
docs: <p>
  Gets information about a deployment group.
  </p>
  
  @param getDeploymentGroupRequest
  Represents the input of a GetDeploymentGroup operation.
  @return Result of the GetDeploymentGroup operation returned by the service.
  @throws ApplicationNameRequiredException
  The minimum number of required application names was not specified.
  @throws InvalidApplicationNameException
  The application name was specified in an invalid format.
  @throws ApplicationDoesNotExistException
  The application does not exist with the IAM user or AWS account.
  @throws DeploymentGroupNameRequiredException
  The deployment group name was not specified.
  @throws InvalidDeploymentGroupNameException
  The deployment group name was specified in an invalid format.
  @throws DeploymentGroupDoesNotExistException
  The named deployment group with the IAM user or AWS account does not exist.
  @throws DeploymentConfigDoesNotExistException
  The deployment configuration does not exist with the IAM user or AWS account.
  @sample AmazonCodeDeploy.GetDeploymentGroup
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/codedeploy-2014-10-06/GetDeploymentGroup" target="_top">AWS
  API Documentation</a>