Variable: NOT_QUEUED_FINAL
constNOT_QUEUED_FINAL:Readonly<FailureClassification>
classification('not_queued', { retryable: false }): the gateway refused the write before
queueing it AND will refuse a repeat the same way (the version wall, a dark swap that did not
queue, an HTTP 4xx). Nothing is pending and Retry is not offered. It is frozen: use it as it is
(classification: NOT_QUEUED_FINAL) instead of spreading classification('not_queued') and
overriding retryable; { ...NOT_QUEUED_FINAL } is a mutable copy.
failure classification not queued final