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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 override(self, key, value):
 """Set a setting to the given value. Note that `key` can be in dotted form, eg 'plugins.release_hook.emailer.sender'. """

        keys = key.split('.')
        if len(keys) > 1:
            if keys[0] != "plugins":
                raise AttributeError("no such setting: %r" % key)
            self.plugins.override(keys[1:], value)
        else:
            self.overrides[key] = value
            self._uncache(key)