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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 unhook(self, debug, pid):
 """ Removes the API hook from the given process and module. @warning: Do not call from an API hook callback. @type debug: L{Debug} @param debug: Debug object. @type pid: int @param pid: Process ID. """

        try:
            hook = self.__hook[pid]
        except KeyError:
            return
        label = "%s!%s" % (self.__modName, self.__procName)
        hook.unhook(debug, pid, label)
        del self.__hook[pid]