code: @Override
      public DescribeIdentityResult describeIdentity(DescribeIdentityRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeIdentity(request);
      }
docs: <p>
  Returns metadata related to the given identity, including when the identity was created and any associated linked
  logins.
  </p>
  <p>
  You must use AWS Developer credentials to call this API.
  </p>
  
  @param describeIdentityRequest
  Input to the <code>DescribeIdentity</code> action.
  @return Result of the DescribeIdentity operation returned by the service.
  @throws InvalidParameterException
  Thrown for missing or bad input parameter(s).
  @throws ResourceNotFoundException
  Thrown when the requested resource (for example, a dataset or record) does not exist.
  @throws NotAuthorizedException
  Thrown when a user is not authorized to access the requested resource.
  @throws TooManyRequestsException
  Thrown when a request is throttled.
  @throws InternalErrorException
  Thrown when the service encounters an error during processing the request.
  @sample AmazonCognitoIdentity.DescribeIdentity
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/cognito-identity-2014-06-30/DescribeIdentity"
  target="_top">AWS API Documentation</a>