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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 submit(self):
 """Submits a form."""

        if self._w3c:
            form = self.find_element(By.XPATH, "./ancestor-or-self::form")
            self._parent.execute_script(
                "var e = arguments[0].ownerDocument.createEvent('Event');"
                "e.initEvent('submit', true, true);"
                "if (arguments[0].dispatchEvent(e)) { arguments[0].submit() }", form)
        else:
            self._execute(Command.SUBMIT_ELEMENT)