This is not the case - my guess is that you are are encountering a namespace collision and need to use fully namespaced methods.
For example, the collision between Dynamo Curve and Revit.db.curve
prefix these types with the full namespace:
Autodesk.DesignScript.Geometry and Autodek.Revit.db
It makes sense you might have trouble if you try to do:
from xyzNamespace import * on both modules as you’ll have a bunch of types with the same short name. Instead refer to the classes by their full names.