code: def add_build_tags(self, tags, project, build_id):
          
          route_values = {}
          if project is not None:
              route_values['project'] = self._serialize.url('project', project, 'str')
          if build_id is not None:
              route_values['buildId'] = self._serialize.url('build_id', build_id, 'int')
          content = self._serialize.body(tags, '[str]')
          response = self._send(http_method='POST',
                                location_id='6e6114b2-8161-44c8-8f6c-c5505782427f',
                                version='5.0',
                                route_values=route_values,
                                content=content)
          return self._deserialize('[str]', self._unwrap_collection(response))
docs: AddBuildTags.
          Adds tags to a build.
          :param [str] tags: The tags to add.
          :param str project: Project ID or project name
          :param int build_id: The ID of the build.
          :rtype: [str]