primary key using sequences

Hi All,
Should be a simple question for all you middlegen veterans out there..
 
I am using the middlegen-hibernate plug in to read an existing schema and
generate the appropriate hbm.xml files. I can specifiy which tables I want
the mapping files for ( by using the <table> but in cases where I want the primary key of the table to be generated using a sequence, I cant seem to find the syntax or the
construct to specify that in the middlegen ant task.
 
 Any pointers on this?
 
Thanks in advance

		
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