Suppose I wish to parse a roadmap such as this in VTL.

map - { "person" = "xyz", age="99" }

Using VTL, I'd call $map.person and $map.age to place the right values within the template.

Now imagine that the map doesn't hold any valid value for that key "person"

map - { age="99" }

Basically call $map.person , VTL simply will return $map.person. I wish to ignore this type of reference from being parsed whatsoever. How do i accomplish this?

quiet notation. yep, it's within the manual.