code: @Override
      public ListAccessKeysResult listAccessKeys(ListAccessKeysRequest request) {
          request = beforeClientExecution(request);
          return executeListAccessKeys(request);
      }
docs: <p>
  Returns information about the access key IDs associated with the specified IAM user. If there is none, the
  operation returns an empty list.
  </p>
  <p>
  Although each user is limited to a small number of keys, you can still paginate the results using the
  <code>MaxItems</code> and <code>Marker</code> parameters.
  </p>
  <p>
  If the <code>UserName</code> field is not specified, the user name is determined implicitly based on the AWS
  access key ID used to sign the request. This operation works for access keys under the AWS account. Consequently,
  you can use this operation to manage AWS account root user credentials even if the AWS account has no associated
  users.
  </p>
  <note>
  <p>
  To ensure the security of your AWS account, the secret access key is accessible only during key and user
  creation.
  </p>
  </note>
  
  @param listAccessKeysRequest
  @return Result of the ListAccessKeys operation returned by the service.
  @throws NoSuchEntityException
  The request was rejected because it referenced a resource entity that does not exist. The error message
  describes the resource.
  @throws ServiceFailureException
  The request processing has failed because of an unknown error, exception or failure.
  @sample AmazonIdentityManagement.ListAccessKeys
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/iam-2010-05-08/ListAccessKeys" target="_top">AWS API
  Documentation</a>