text: import abc
  import six
  
  
  @six.add_metaclass(abc.ABCMeta)
  class BuilderInterface(object):
  
      @abc.abstractmethod
      def build(self):
          """Will be called when the build needs to start"""
          raise NotImplementedError('BuilderInterface.build')
  
      @abc.abstractmethod
      def generate_pod_spec(self):
          """This method should return a V1PodSpec with the correct image set.
              This is also where the builder should set the environment variables
              and volume/volumeMounts that it may need to work"""
          raise NotImplementedError('BuilderInterface.generate_pod_spec')
  