





'''simple docstring'''


from typing import List, Optional, Tuple, Union

import torch

from ...models import UNetaDModel
from ...schedulers import PNDMScheduler
from ...utils import randn_tensor
from ..pipeline_utils import DiffusionPipeline, ImagePipelineOutput



class 							__UpperCAmelCase  (       A__						):







		'''simple docstring'''







		__lowerCAmelCase 				=    42
		__lowerCAmelCase 				=    42







		def __init__(self						:      Tuple      ,      _lowerCAmelCase						:      UNetaDModel      ,      _lowerCAmelCase						:      PNDMScheduler      ):
			super().__init__()

			A							  =      PNDMScheduler.from_config(scheduler.config      )

			self.register_modules(unet=_lowerCAmelCase      ,      scheduler=_lowerCAmelCase      )







		@torch.no_grad()
		def __call__(self						:      List[Any]      ,      _lowerCAmelCase						:      int = 1      ,      _lowerCAmelCase						:      int = 50      ,      _lowerCAmelCase						:      Optional[Union[torch.Generator, List[torch.Generator]]] = None      ,      _lowerCAmelCase						:      Optional[str] = "pil"      ,      _lowerCAmelCase						:      bool = True      ,      **_lowerCAmelCase						:      Optional[Any]      ,      ):
			A							  =      randn_tensor(
			    (batch_size, self.unet.config.in_channels, self.unet.config.sample_size, self.unet.config.sample_size)      ,      generator=_lowerCAmelCase      ,      device=self.device      ,      )

			self.scheduler.set_timesteps(_lowerCAmelCase      )
			for t in self.progress_bar(self.scheduler.timesteps      ):
				A							  =      self.unet(_lowerCAmelCase      ,      _lowerCAmelCase      ).sample

				A							  =      self.scheduler.step(_lowerCAmelCase      ,      _lowerCAmelCase      ,      _lowerCAmelCase      ).prev_sample

			A							  =      (image / 2 + 0.5).clamp(0      ,      1      )
			A							  =      image.cpu().permute(0      ,      2      ,      3      ,      1      ).numpy()
			if output_type == "pil":
				A							  =      self.numpy_to_pil(_lowerCAmelCase      )

			if not return_dict:
				return (image,)

			return ImagePipelineOutput(images=_lowerCAmelCase      )








'''simple docstring'''


import torch

from diffusers import KDPMaAncestralDiscreteScheduler
from diffusers.utils import torch_device

from .test_schedulers import SchedulerCommonTest



class 							__UpperCAmelCase  (       A__						):







		'''simple docstring'''







		__lowerCAmelCase 				=    (KDPMaAncestralDiscreteScheduler,)
		__lowerCAmelCase 				=    10







		def        A     (self						:      Any      ,      **_lowerCAmelCase						:      List[Any]      ):
			A							  =      {
			    """num_train_timesteps""": 1100,
			    """beta_start""": 0.0_001,
			    """beta_end""": 0.02,
			    """beta_schedule""": """linear""",
			}

			config.update(**_lowerCAmelCase      )
			return config







		def        A     (self						:      Dict      ):
			for timesteps in [10, 50, 100, 1000]:
				self.check_over_configs(num_train_timesteps=_lowerCAmelCase      )







		def        A     (self						:      Optional[int]      ):
			for beta_start, beta_end in zip([0.00_001, 0.0_001, 0.001]      ,      [0.0_002, 0.002, 0.02]      ):
				self.check_over_configs(beta_start=_lowerCAmelCase      ,      beta_end=_lowerCAmelCase      )







		def        A     (self						:      Tuple      ):
			for schedule in ["linear", "scaled_linear"]:
				self.check_over_configs(beta_schedule=_lowerCAmelCase      )







		def        A     (self						:      Dict      ):
			if torch_device == "mps":
				return
			A							  =      self.scheduler_classes[0]
			A							  =      self.get_scheduler_config()
			A							  =      scheduler_class(**_lowerCAmelCase      )

			scheduler.set_timesteps(self.num_inference_steps      )

			A							  =      torch.manual_seed(0      )

			A							  =      self.dummy_model()
			A							  =      self.dummy_sample_deter * scheduler.init_noise_sigma
			A							  =      sample.to(_lowerCAmelCase      )

			for i, t in enumerate(scheduler.timesteps      ):
				A							  =      scheduler.scale_model_input(_lowerCAmelCase      ,      _lowerCAmelCase      )

				A							  =      model(_lowerCAmelCase      ,      _lowerCAmelCase      )

				A							  =      scheduler.step(_lowerCAmelCase      ,      _lowerCAmelCase      ,      _lowerCAmelCase      ,      generator=_lowerCAmelCase      )
				A							  =      output.prev_sample

			A							  =      torch.sum(torch.abs(_lowerCAmelCase      )      )
			A							  =      torch.mean(torch.abs(_lowerCAmelCase      )      )

			assert abs(result_sum.item() - 13_849.3_877      ) < 1e-2
			assert abs(result_mean.item() - 18.0_331      ) < 5e-3







		def        A     (self						:      Union[str, Any]      ):
			for prediction_type in ["epsilon", "v_prediction"]:
				self.check_over_configs(prediction_type=_lowerCAmelCase      )







		def        A     (self						:      Dict      ):
			if torch_device == "mps":
				return
			A							  =      self.scheduler_classes[0]
			A							  =      self.get_scheduler_config(prediction_type="""v_prediction"""      )
			A							  =      scheduler_class(**_lowerCAmelCase      )

			scheduler.set_timesteps(self.num_inference_steps      )

			A							  =      self.dummy_model()
			A							  =      self.dummy_sample_deter * scheduler.init_noise_sigma
			A							  =      sample.to(_lowerCAmelCase      )

			A							  =      torch.manual_seed(0      )

			for i, t in enumerate(scheduler.timesteps      ):
				A							  =      scheduler.scale_model_input(_lowerCAmelCase      ,      _lowerCAmelCase      )

				A							  =      model(_lowerCAmelCase      ,      _lowerCAmelCase      )

				A							  =      scheduler.step(_lowerCAmelCase      ,      _lowerCAmelCase      ,      _lowerCAmelCase      ,      generator=_lowerCAmelCase      )
				A							  =      output.prev_sample

			A							  =      torch.sum(torch.abs(_lowerCAmelCase      )      )
			A							  =      torch.mean(torch.abs(_lowerCAmelCase      )      )

			assert abs(result_sum.item() - 328.9_970      ) < 1e-2
			assert abs(result_mean.item() - 0.4_284      ) < 1e-3







		def        A     (self						:      Optional[int]      ):
			if torch_device == "mps":
				return
			A							  =      self.scheduler_classes[0]
			A							  =      self.get_scheduler_config()
			A							  =      scheduler_class(**_lowerCAmelCase      )

			scheduler.set_timesteps(self.num_inference_steps      ,      device=_lowerCAmelCase      )
			A							  =      torch.manual_seed(0      )

			A							  =      self.dummy_model()
			A							  =      self.dummy_sample_deter.to(_lowerCAmelCase      ) * scheduler.init_noise_sigma

			for t in scheduler.timesteps:
				A							  =      scheduler.scale_model_input(_lowerCAmelCase      ,      _lowerCAmelCase      )

				A							  =      model(_lowerCAmelCase      ,      _lowerCAmelCase      )

				A							  =      scheduler.step(_lowerCAmelCase      ,      _lowerCAmelCase      ,      _lowerCAmelCase      ,      generator=_lowerCAmelCase      )
				A							  =      output.prev_sample

			A							  =      torch.sum(torch.abs(_lowerCAmelCase      )      )
			A							  =      torch.mean(torch.abs(_lowerCAmelCase      )      )

			assert abs(result_sum.item() - 13_849.3_818      ) < 1e-1
			assert abs(result_mean.item() - 18.0_331      ) < 1e-3

