#NEWLINE# def announce_to( self , dot_context , via = None ) : #NEWLINE# #INDENT# ' Announce the receiver to the context.\n\t\t\n\t\tSubclasses MUST NOT announce other graphable objects they are holding\n\t\ton to here but they MUST announce them in "deliver_to" if appropriate.\n\t\t\n\t\t- dot_context The context to announce to\n\t\t- via If not-None the other GraphableObject that is responsible for\n\t\t\tannouncing the receiver\n\t\t' #NEWLINE# self . announced_via = via #NEWLINE# dot_context . announce ( via )