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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 check_permission(cls, role, permission):
 """ Check if role contains permission """

        result = permission in settings.ARCTIC_ROLES[role]
        # will try to call a method with the same name as the permission
        # to enable an object level permission check.
        if result:
            try:
                return getattr(cls, permission)(role)
            except AttributeError:
                pass
        return result