Water 5-Flow Control and Boolean-Boolean Logic
class boolean
Contract
No input parameters.
Water Contract
<class boolean
/>

See also: if

The boolean class has just two instances, true and false . Each executes to itself.
boolean.<is_type_for true/>true
boolean.<is_type_for false/>true
true.<is false/>false
In Water, "trueness" is usually any value that is not false. The method if takes condition action pairs. Any condition that is not false is considered to be true and the action for that clause will execute.