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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 reset_defaults(self):
 """Reset login and password in QgsSettings."""

        self.save_login.setChecked(False)
        self.save_password.setChecked(False)
        self.save_url.setChecked(False)

        set_setting(GEONODE_USER, '')
        set_setting(GEONODE_PASSWORD, '')
        set_setting(GEONODE_URL, '')

        self.login.setText('')
        self.password.setText('')
        self.url.setText('')