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Such variable can be retrieved from the global cache as a 'Filter' object only as long as you are in the first pass.
But during the second pass, if you retrieve it, you will get the JSON representation of this object. Accessing the key of a map stored as a global variable in second pass is done using the syntax:
Code Block language groovy api.global.variable.map[(key)]
Note about global variables:
Global variables are very useful to persist information either:
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