code: def create(self, to, from_, parameters=values.unset):
          
          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'], )
docs: 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