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public interface ProcessingContext {

. . . 

/**
* Return the non-deserialized byte[] of the input message key if the context has been triggered by a message.
*
* <p> If this method is invoked within a {@link Punctuator#punctuate(long)
* punctuation callback}, or while processing a record that was forwarded by a punctuation
* callback, it will return null.
*
* <p> If this method is invoked in a sub-topology due to a repartition, the returned key would be one sent
* to the repartition topic.
*
* @return the raw byte of the key of the source message
*/
byte[] source_raw_keysourceRawKey();


/**
* Return the non-deserialized byte[] of the input message value if the context has been triggered by a message.
*
* <p> If this method is invoked within a {@link Punctuator#punctuate(long)
* punctuation callback}, or while processing a record that was forwarded by a punctuation
* callback, it will return null.
*
* <p> If this method is invoked in a sub-topology due to a repartition, the returned value would be one sent
* to the repartition topic.
*
* @return the raw byte of the value of the source message
*/
byte[] source_raw_valuesourceRawValue();


. . . 

}