question: @ Override public String fillSlots ( Assignment fillers ) { if ( slots . isEmpty ( ) ) { return rawString ; } String filled = rawString ; for ( String slot : slots . keySet ( ) ) { Value v = fillers . getValue ( slot ) ; if ( v != ValueFactory . none ( ) ) { String strval = v . toString ( ) ; filled = filled . replace ( "{" + slot + "}" , strval ) ; } } return filled ; }
target:  Fills the template with the given content, and returns the filled string. The content provided in the form of a slot:filler mapping. For instance, given a template: "my name is {name}" and a filler "name:Pierre", the method will return "my name is Pierre".