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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 create_authorization_code(self, request):
 """ Generates an authorization grant represented as a dictionary. :param request: OAuthlib request. :type request: oauthlib.common.Request """

        grant = {'code': common.generate_token()}
        if hasattr(request, 'state') and request.state:
            grant['state'] = request.state
        log.debug('Created authorization code grant %r for request %r.',
                  grant, request)
        return grant