GT = Given types, types of extracted values for then steps GTE = Given extractor types, types of extractor functions WT = When types, types of extracted values for when steps WTR = When result types, after mapping WTE = When extractor types WM = Mapping functions types TTE = Then types extractors VE = verification types for then steps
Start of a scenario
renaming of the shapeless cons object to avoid imports
start a sequence of GWT steps by default the scenario template that is used is considering the last lines before the scenario end to form the given/when/then steps
The GWT trait can be used to associate a piece of text to Given/When/Then steps according to the [BDD](http://en.wikipedia.org/wiki/Behavior-driven_development) way of describing acceptance criteria