This works for me:
import rhinoscriptsyntax as rs
translation = rs.VectorCreate((0,0,0), (10,0,0))
a = rs.MoveObjects(mesh, translation)
In the above script, you first create a translation vector from the origin (0,0,0), which is also the center point of the mesh cube that I input as parameter ‘mesh’, to another position. The other position is a point 10 units in x-direction away from the origin.
By having a translation vector, you are now able to move your mesh by this vector. I output it at the default GHPython component output ‘a’ for preview purposes, but you could save it in a variable as well.
MoveObjects(object_ids, translation) takes two arguments: a single object guid or a collection of object guids and a translation, as either a list or tuple of three numbers or a Vector3d. It returns a collection of moved object guids.
Make sure that your parameters are of the right type.
It is usually a bad idea to mix rhinoscriptsyntax and rhinocommon. You should stick to the one or the other.