In some scenarios, after using MDC.pushByKey(key, value) to push a value into the deque (stack), we may need to retrieve the top value without popping the stack referenced by 'key', similar to a ​​peekByKey​​ operation. However, the current SLF4J implementation requires developers to invoke getCopyOfDequeByKey(key) and manually peek from the returned deque (stack), which involves creating a copy of the data structure and leads to unnecessary performance overhead. Would it be more efficient to add native support for peekByKey in MDC to avoid this redundancy?

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