code: def get_template(self, project, template_id):
          
          route_values = {}
          if project is not None:
              route_values['project'] = self._serialize.url('project', project, 'str')
          if template_id is not None:
              route_values['templateId'] = self._serialize.url('template_id', template_id, 'str')
          response = self._send(http_method='GET',
                                location_id='e884571e-7f92-4d6a-9274-3f5649900835',
                                version='5.0',
                                route_values=route_values)
          return self._deserialize('BuildDefinitionTemplate', response)
docs: GetTemplate.
          Gets a specific build definition template.
          :param str project: Project ID or project name
          :param str template_id: The ID of the requested template.
          :rtype: :class:`<BuildDefinitionTemplate> <azure.devops.v5_0.build.models.BuildDefinitionTemplate>`