add GradTTS in init

src/diffusers/__init__.py

@@ -10,6 +10,6 @@ from .models.unet_glide import GLIDEUNetModel, GLIDESuperResUNetModel, GLIDEText
 from .models.unet_ldm import UNetLDMModel
 from .models.unet_grad_tts import UNetGradTTSModel
 from .pipeline_utils import DiffusionPipeline
-from .pipelines import DDIM, DDPM, GLIDE, LatentDiffusion, PNDM, BDDM
+from .pipelines import DDIM, DDPM, GLIDE, LatentDiffusion, PNDM, BDDM, GradTTS
 from .schedulers import DDIMScheduler, DDPMScheduler, SchedulerMixin, PNDMScheduler, GradTTSScheduler
 from .schedulers.classifier_free_guidance import ClassifierFreeGuidanceScheduler

src/diffusers/pipelines/__init__.py

@@ -4,3 +4,4 @@ from .pipeline_pndm import PNDM
 from .pipeline_glide import GLIDE
 from .pipeline_latent_diffusion import LatentDiffusion
 from .pipeline_bddm import BDDM
+from .pipeline_grad_tts import GradTTS
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