Message::Passing::Filter::Null - Filter no messages out.
This filter does nothing, passing all incoming messages through with no changes.
You would normally never want to use this, but it can be useful for testing occasionally.
Returns the message passed to it.
This module exists due to the wonderful people at Suretec Systems Ltd. <http://www.suretecsystems.com/> who sponsored its development for its VoIP division called SureVoIP <http://www.surevoip.co.uk/> for use with the SureVoIP API - <http://www.surevoip.co.uk/support/wiki/api_documentation>