@Override
    public java.util.concurrent.Future<DescribeDirectoriesResult> describeDirectoriesAsync() {

        return describeDirectoriesAsync(new DescribeDirectoriesRequest());
    }
Simplified method form for invoking the DescribeDirectories operation.

@see #describeDirectoriesAsync(DescribeDirectoriesRequest)
aws-java-sdk-directory/src/main/java/com/amazonaws/services/directory/AWSDirectoryServiceAsyncClient.java