@Override
    public void init(final FixedKeyProcessorContext<KIn, VOut> context) {
        this.context = context;
    }
An abstract implementation of {@link FixedKeyProcessor} that manages the
{@link FixedKeyProcessorContext} instance and provides default no-op
implementation of {@link #close()}.

@param <KIn> the type of input keys
@param <VIn> the type of input values
@param <VOut> the type of output values
streams/src/main/java/org/apache/kafka/streams/processor/api/ContextualFixedKeyProcessor.java