b917ec78__Authorization_Language__EPAL___Return_Value
[Name] double-bag-to-value [Arguments] A single bag of attribute values of http://www.w3.org/2001/XMLSchema#double [Return Value] 
This function checks whether the bag contains one and only one attribute value. If it is true, then an attribute value of http://www.w3.org/2001/XMLSchema#double representing the only one value is returned, otherwise an error is returned.
Enterprise Privacy Authorization Language (EPAL)
Return Value