native is restricted to a default list of assemblies.
To access other assemblies, you can use assembly.assemblyname.
assembly.assemblyname returns a new NamespaceInstance which acts like native
and allows you to search through the namespaces available in the assembly and retrieves
types therein.
When the assemblyname has a space in it or another special character that would not work
well with assembly.assemblyname, like assembly.abc def, you have to use
assembly['abc def'] instead, since the interpreter sees assembly.abc and def as two
different tokens.