__init__.py

from .pipeline_bddm import BDDM
from .pipeline_ddim import DDIM
from .pipeline_ddpm import DDPM
try:
    from .pipeline_glide import GLIDE
except ImportError:
    class GLIDE:
        pass
from .pipeline_latent_diffusion import LatentDiffusion
from .pipeline_pndm import PNDM