[Mimedefang] A clean mimedefang.pl

[postfix at ptld.com]

Is it possible to get a bare bones mimedefang.pl that is stripped down 
of everything and only has what is absolutely necessary for the c parts 
to run and call upon the filter perl script? Just what is needed to 
support the following filter example? Is there any documentation showing 
what parts of the mimedefang.pl are required by the c parts that i could 
follow to make a bare bones version? Help me defang mimedefang :)

mimedefang-filter:
     sub filter_begin {
     }
     sub filter {
     }
     sub filter_multipart {
     }
     sub filter_end {
     }