code: @Override
      public DeleteDocumentResult deleteDocument(DeleteDocumentRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteDocument(request);
      }
docs: <p>
  Permanently deletes the specified document and its associated metadata.
  </p>
  
  @param deleteDocumentRequest
  @return Result of the DeleteDocument operation returned by the service.
  @throws EntityNotExistsException
  The resource does not exist.
  @throws ProhibitedStateException
  The specified document version is not in the INITIALIZED state.
  @throws ConflictingOperationException
  Another operation is in progress on the resource that conflicts with the current operation.
  @throws ConcurrentModificationException
  The resource hierarchy is changing.
  @throws UnauthorizedOperationException
  The operation is not permitted.
  @throws UnauthorizedResourceAccessException
  The caller does not have access to perform the action on the resource.
  @throws FailedDependencyException
  The AWS Directory Service cannot reach an on-premises instance. Or a dependency under the control of the
  organization is failing, such as a connected Active Directory.
  @throws ServiceUnavailableException
  One or more of the dependencies is unavailable.
  @sample AmazonWorkDocs.DeleteDocument
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/workdocs-2016-05-01/DeleteDocument" target="_top">AWS API
  Documentation</a>