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SDK to implement Numaflow Source or User Defined Functions or Sinks in Java.

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package io.numaproj.numaflow.mapstreamer;


/**
 * OutputObserver receives messages from the MapStreamer.
 */
public interface OutputObserver {
    /**
     * method will be used for sending messages to the output.
     *
     * @param message the message to be sent
     */
    void send(Message message);
}