A callback function that is applied to all Span instances right before they are finished and flushed to Span
reporters. PreFinishHook implementations are configured using the "kamon.trace.hooks.pre-finish" configuration
setting and all implementations must have a parameter-less constructor.
A callback function that is applied to all Span instances right before they are finished and flushed to Span reporters. PreFinishHook implementations are configured using the "kamon.trace.hooks.pre-finish" configuration setting and all implementations must have a parameter-less constructor.