def create(self, to, from_, parameters=values.unset):
data = values.of({'<STR_LIT>': to, '<STR_LIT>': from_, '<STR_LIT>': serialize.object(parameters), })<EOL>payload = self._version.create(<EOL>'<STR_LIT:POST>',<EOL>self._uri,<EOL>data=data,<EOL>)<EOL>return EngagementInstance(self._version, payload, flow_sid=self._solution['<STR_LIT>'], )<EOL>
Create a new EngagementInstance

:param unicode to: The Contact phone number to start a Studio Flow Engagement.
:param unicode from_: The Twilio phone number to send messages or initiate calls from during the Flow Engagement.
: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 EngagementInstance
:rtype: twilio.rest.studio.v1.flow.engagement.EngagementInstance