[Name] serialization [Values] XML or EXI [Description] whether to do the normal XML serialization, or do an EXI serialization - which is useful if the original document to be signed is already in EXI format. [Default] 
XML
f a l s e
e m p t y
t r u e
X M L
n o n e
c o m b i n e
i n h e r i t