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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 OpenDialog(self, Name, *Params):
 """Open dialog. Use this method to open dialogs added in newer Skype versions if there is no dedicated method in Skype4Py. :Parameters: Name : str Dialog name. Params : unicode One or more optional parameters. """

        self._Skype._Api.allow_focus(self._Skype.Timeout)
        params = filter(None, (str(Name),) + Params)
        self._Skype._DoCommand('OPEN %s' % tounicode(' '.join(params)))