Allusion 
Allusion is a figure of speech, in which an object or circumstance from unrelated context is referred to covertly or indirectly
        
                    
             
        
        
        
Yea the answer above is right
        
             
        
        
        
request a two weeks notice 
provide constructive feedback 
Express gratitude 
outline your reasons for quitting
provide your formal letter of resignation