Exports this object into a LEMS XML object

def toxml(self):
        """
        Exports this object into a LEMS XML object
        """

        return '<EventConnection' +\
          (' from="{0}"'.format(self.from_) if self.from_ else '') +\
          (' to="{0}"'.format(self.to) if self.to else '') +\
          (' sourcePort="{0}"'.format(self.source_port) if self.source_port else '') +\
          (' targetPort="{0}"'.format(self.target_port) if self.target_port else '') +\
          (' receiver="{0}"'.format(self.receiver) if self.receiver else '') +\
          (' receiverContainer="{0}"'.format(self.receiver_container) if self.receiver_container else '') +\
          '/>'