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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 create(self, to, from_, parameters=values.unset):
 """ Create a new ExecutionInstance :param unicode to: The Contact phone number to start a Studio Flow Execution. :param unicode from_: The Twilio phone number to send messages or initiate calls from during the Flow Execution. :param dict parameters: JSON data that will be added to your flow's context and can accessed as variables inside your flow. :returns: Newly created ExecutionInstance :rtype: twilio.rest.studio.v1.flow.execution.ExecutionInstance """

        data = values.of({'To': to, 'From': from_, 'Parameters': serialize.object(parameters), })

        payload = self._version.create(
            'POST',
            self._uri,
            data=data,
        )

        return ExecutionInstance(self._version, payload, flow_sid=self._solution['flow_sid'], )