class Hangman:
    def __init__(self):
        pass

    def setPhrase(self, phrase):
        '''set the phrase for this game'''
        pass

    def realPhrase(self):
        '''return the real phrase without modification'''
        pass

    def hiddenPhrase(self):
        '''return the phrase with letters replaced with the underscore character to hide them'''
        pass

    def hasLetter(self, letter):
        '''return true if the guess exists in the phrase'''
        pass

    def makeGuess(self, letter):
        '''Return a list of letters that have been guessed so far'''
        pass
