Syntax
set anObject = map.getMapValue(aKey)
SemanticsGet the object from map map that is identified by akey. If the map value cannot be found, NULL is returned.
SubstitutablesanObjectThe map entry identified by aKey. 
map

An object of type Map.

aKeyKey value identifying the map entry.
Examples
create address;
set address = hashMap.getMapValue("John Smith");
address is an object of type Address.

Example File (Builder project E2E Action Language/Map):

<your example path>\E2E Action Language\map\uml\mapBenchmark.xml