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HIDDEN
The HIDDEN attribute prevents information concerning a constant
definition or a type, variable, procedure, or function
declaration from being included in a generated environment file.
The HIDDEN attribute can be used only on objects at the
outermost level of the compilation unit.
It is possible to prevent all declarations within a declaration
section from being included in the environment file by preceding
the reserved word CONST, TYPE, or VAR with the HIDDEN attribute.