use_namespace name TCL command searches for all TCL
commands of the form name.x, and creates a new TCL command
x that calls name.x. This allows a simple “dump”
of Eco Lab model methods and instance variables into TCL's current
namespace. The term “namespace” in
use_namespace is unrelated
to TCL's namespace concept.
use_namespace does not override an any existing
commands in the current namespace. Imagine what havoc an instance
variable called “proc” would make! Thus it may be necessary to refer
to an instance variable or method by its fully qualified name fro TCL
scripts to get the desired behaviour.