
"""simple docstring"""
import torch

from diffusers import DDIMScheduler

from .test_schedulers import SchedulerCommonTest






class   _UpperCAmelCase					(       _snake_case):
    __lowercase				:			Union[str, Any]	=       (DDIMScheduler,)
    __lowercase				:			List[str]	=       (("""eta""", 0.0), ("""num_inference_steps""", 5_0))
    def        lowerCamelCase__						(     self    ,     **snake_case_  ):
      _snake_case  :    Tuple            = {
          "num_train_timesteps": 10_00,
          "beta_start": 0.0001,
          "beta_end": 0.02,
          "beta_schedule": "linear",
          "clip_sample": True,
      }

      config.update(**snake_case_  )
      return config
    def        lowerCamelCase__						(     self    ,     **snake_case_  ):
      _snake_case  :    Optional[int]            = self.scheduler_classes[0]
      _snake_case  :    Dict            = self.get_scheduler_config(**snake_case_  )
      _snake_case  :    Optional[int]            = scheduler_class(**snake_case_  )

      _snake_case      ,       _snake_case  :    List[Any]            = 10, 0.0

      _snake_case  :    List[Any]            = self.dummy_model()
      _snake_case  :    Tuple            = self.dummy_sample_deter

      scheduler.set_timesteps(snake_case_  )

      for t in scheduler.timesteps:
        _snake_case  :    Tuple            = model(snake_case_    ,     snake_case_  )
        _snake_case  :    Optional[Any]            = scheduler.step(snake_case_    ,     snake_case_    ,     snake_case_    ,     snake_case_  ).prev_sample

      return sample
    def        lowerCamelCase__						(     self  ):
      for timesteps in [1_00, 5_00, 10_00]:
        self.check_over_configs(num_train_timesteps=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      for steps_offset in [0, 1]:
        self.check_over_configs(steps_offset=snake_case_  )

      _snake_case  :    Optional[int]            = self.scheduler_classes[0]
      _snake_case  :    Optional[Any]            = self.get_scheduler_config(steps_offset=1  )
      _snake_case  :    Tuple            = scheduler_class(**snake_case_  )
      scheduler.set_timesteps(5  )
      assert torch.equal(scheduler.timesteps    ,     torch.LongTensor([8_01, 6_01, 4_01, 2_01, 1]  )  )
    def        lowerCamelCase__						(     self  ):
      for beta_start, beta_end in zip([0.0001, 0.001, 0.01, 0.1]    ,     [0.002, 0.02, 0.2, 2]  ):
        self.check_over_configs(beta_start=snake_case_    ,     beta_end=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      for schedule in ["linear", "squaredcos_cap_v2"]:
        self.check_over_configs(beta_schedule=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      for prediction_type in ["epsilon", "v_prediction"]:
        self.check_over_configs(prediction_type=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      for clip_sample in [True, False]:
        self.check_over_configs(clip_sample=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      for timestep_spacing in ["trailing", "leading"]:
        self.check_over_configs(timestep_spacing=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      for rescale_betas_zero_snr in [True, False]:
        self.check_over_configs(rescale_betas_zero_snr=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      self.check_over_configs(thresholding=snake_case_  )
      for threshold in [0.5, 1.0, 2.0]:
        for prediction_type in ["epsilon", "v_prediction"]:
          self.check_over_configs(
              thresholding=snake_case_    ,     prediction_type=snake_case_    ,     sample_max_value=snake_case_    ,     )
    def        lowerCamelCase__						(     self  ):
      for t in [1, 10, 49]:
        self.check_over_forward(time_step=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      for t, num_inference_steps in zip([1, 10, 50]    ,     [10, 50, 5_00]  ):
        self.check_over_forward(time_step=snake_case_    ,     num_inference_steps=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      for t, eta in zip([1, 10, 49]    ,     [0.0, 0.5, 1.0]  ):
        self.check_over_forward(time_step=snake_case_    ,     eta=snake_case_  )
    def        lowerCamelCase__						(     self  ):
      _snake_case  :    List[Any]            = self.scheduler_classes[0]
      _snake_case  :    Optional[Any]            = self.get_scheduler_config()
      _snake_case  :    Optional[Any]            = scheduler_class(**snake_case_  )

      assert torch.sum(torch.abs(scheduler._get_variance(0    ,     0  ) - 0.0  )  ) < 1E-5
      assert torch.sum(torch.abs(scheduler._get_variance(4_20    ,     4_00  ) - 0.14771  )  ) < 1E-5
      assert torch.sum(torch.abs(scheduler._get_variance(9_80    ,     9_60  ) - 0.32460  )  ) < 1E-5
      assert torch.sum(torch.abs(scheduler._get_variance(0    ,     0  ) - 0.0  )  ) < 1E-5
      assert torch.sum(torch.abs(scheduler._get_variance(4_87    ,     4_86  ) - 0.00979  )  ) < 1E-5
      assert torch.sum(torch.abs(scheduler._get_variance(9_99    ,     9_98  ) - 0.02  )  ) < 1E-5
    def        lowerCamelCase__						(     self  ):
      _snake_case  :    List[Any]            = self.full_loop()

      _snake_case  :    Union[str, Any]            = torch.sum(torch.abs(snake_case_  )  )
      _snake_case  :    Tuple            = torch.mean(torch.abs(snake_case_  )  )

      assert abs(result_sum.item() - 172.0067  ) < 1E-2
      assert abs(result_mean.item() - 0.223967  ) < 1E-3
    def        lowerCamelCase__						(     self  ):
      _snake_case  :    List[Any]            = self.full_loop(prediction_type="v_prediction"  )

      _snake_case  :    Optional[Any]            = torch.sum(torch.abs(snake_case_  )  )
      _snake_case  :    Optional[int]            = torch.mean(torch.abs(snake_case_  )  )

      assert abs(result_sum.item() - 52.5302  ) < 1E-2
      assert abs(result_mean.item() - 0.0684  ) < 1E-3
    def        lowerCamelCase__						(     self  ):
      # We specify different beta, so that the first alpha is 0.99
      _snake_case  :    Tuple            = self.full_loop(set_alpha_to_one=snake_case_    ,     beta_start=0.01  )
      _snake_case  :    str            = torch.sum(torch.abs(snake_case_  )  )
      _snake_case  :    Union[str, Any]            = torch.mean(torch.abs(snake_case_  )  )

      assert abs(result_sum.item() - 149.8295  ) < 1E-2
      assert abs(result_mean.item() - 0.1951  ) < 1E-3


    def        lowerCamelCase__						(     self  ):
      # We specify different beta, so that the first alpha is 0.99
      _snake_case  :    Dict            = self.full_loop(set_alpha_to_one=snake_case_    ,     beta_start=0.01  )
      _snake_case  :    Tuple            = torch.sum(torch.abs(snake_case_  )  )
      _snake_case  :    Dict            = torch.mean(torch.abs(snake_case_  )  )

      assert abs(result_sum.item() - 149.0784  ) < 1E-2
      assert abs(result_mean.item() - 0.1941  ) < 1E-3






from __future__ import annotations

from typing import Generic, TypeVar

UpperCamelCase__			=    TypeVar("T")
class       _lowerCAmelCase (			Generic[T]      ):






			"""simple docstring"""





			def __init__(					self						:							int      ,  lowercase						:							T )    ->       Union[str, Any]:
									"""simple docstring"""







									__lowercase											=					data  # Assign data
									__lowercase											=					None  # Initialize next as null
									__lowercase											=					None  # Initialize prev as null





class       _lowerCAmelCase (			Generic[T]      ):






			"""simple docstring"""





			def __init__(					self						:							Any )    ->       None:
									"""simple docstring"""







									__lowercase											=					None





			def 		snake_case__      (					self						:							str      ,  lowercase						:							T )    ->       None:
									"""simple docstring"""







									if self.head is None:
															__lowercase											=					Node(lowercase )
									else:
															__lowercase											=					Node(lowercase )
															__lowercase											=					new_node
															__lowercase											=					self.head
															__lowercase											=					None
															__lowercase											=					new_node





			def 		snake_case__      (					self						:							Optional[Any] )    ->       T | None:
									"""simple docstring"""







									if self.head is None:
															return None
									else:
															assert self.head is not None
															__lowercase											=					self.head.data
															__lowercase											=					self.head.next
															if self.head is not None:
																					__lowercase											=					None
															return temp





			def 		snake_case__      (					self						:							Optional[Any] )    ->       T | None:
									"""simple docstring"""







									return self.head.data if self.head is not None else None





			def __len__(					self						:							List[str] )    ->       int:
									"""simple docstring"""







									__lowercase											=					self.head
									__lowercase											=					0
									while temp is not None:
															count += 1
															__lowercase											=					temp.next
									return count





			def 		snake_case__      (					self						:							Optional[Any] )    ->       bool:
									"""simple docstring"""







									return self.head is None







			def 		snake_case__      (					self						:							Optional[Any] )    ->       None:
									"""simple docstring"""







									print("""stack elements are:""" )
									__lowercase											=					self.head
									while temp is not None:
															print(temp.data      ,  end="""->""" )
															__lowercase											=					temp.next


# Code execution starts here
if __name__ == "__main__":
			# Start with the empty stack
			UpperCamelCase__			=    Stack()

			# Insert 4 at the beginning. So stack becomes 4->None
			print("Stack operations using Doubly LinkedList")
			stack.push(4)

			# Insert 5 at the beginning. So stack becomes 4->5->None
			stack.push(5)

			# Insert 6 at the beginning. So stack becomes 4->5->6->None
			stack.push(6)

			# Insert 7 at the beginning. So stack becomes 4->5->6->7->None
			stack.push(7)

			# Print the stack
			stack.print_stack()

			# Print the top element
			print("\nTop element is ", stack.top())

			# Print the stack size
			print("Size of the stack is ", len(stack))

			# pop the top element
			stack.pop()

			# pop the top element
			stack.pop()

			# two elements have now been popped off
			stack.print_stack()

			# Print True if the stack is empty else False
			print("\nstack is empty:", stack.is_empty())





