Fix type converters loosing generic information
Fix type converters loosing generic information

Fixes #144

simolus3/moor,simolus3/moor,simolus3/moor,simolus3/moor,simolus3/drift,simolus3/moor,simolus3/drift,simolus3/moor,simolus3/drift,simolus3/drift,simolus3/drift,simolus3/drift,simolus3/moor,simolus3/drift