Generated by a call to the base function new.env().
Details
The environment is created in 'zzz.r' and can be used by PBSmodelling functions 'lisp', 'tget', 'tput', 'tprint', and 'tcall', if this package has be loaded.
Currently, '.PBSmapEnv' is only used in '.validateData'
(in the namespace), and by a set of print functions specific to PBSmapping.