the only thing that is right in this module is the reference to "Interpolation'. The mistakes are:
- the documentation doesn't state why one should use this module instead for "Interpolation"
- The author should have cooperated with "Interpolation" author is something was missing there
- the name space could have been close to "Interpolation" so users can find modules easily
all above are administrative "errors" and don't reduce the utility of the module, if any, above what "Interpolation" provides.