here is an example, shipped with the distribution.

The problem is that in FIX there is a next layer of abstraction, i.e. something like session management; for example LogOn message should be the first etc. - it may be the next module, through I'm not sure, becasue there might be proprietary extensions (in form of custom Fiels, Messages); hence, it might be a little bit tricky to support that in generic session management.

PS. Protocol::FIX supports loading of custom extensions.