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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def unicode_char(ignored_chars=None):
 """returns a handler that listens for unicode characters"""

        return lambda e: e.unicode if e.type == pygame.KEYDOWN \
            and ((ignored_chars is None) 
                  or (e.unicode not in ignored_chars))\
            else EventConsumerInfo.DONT_CARE