class Logging::Filter
The `Filter` class allows for filtering messages based on event properties independently of the standard minimum-level restriction.
All other Filters inherit from this class, and must override the `allow` method to return the event if it should be allowed into the log. Otherwise the `allow` method should return `nil`.
Public Instance Methods
allow( event )
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Returns the event if it should be allowed into the log. Returns `nil` if the event should not be allowed into the log. Subclasses should override this method and provide their own filtering semantics.
# File lib/logging/filter.rb, line 14 def allow( event ) event end