





import math

import flax.linen as nn
import jax.numpy as jnp





def     _UpperCamelCase     (a__   :Dict   ,			a__   :int   ,			a__   :Union[str, Any] = 1   ,			a__   :str = 1   ,			a__   :Tuple = 1.0e4   ,			a__   :Optional[int] = False   ,			a__   :int = 1.0   ,			):






							"""simple docstring"""





							assert timesteps.ndim == 1, "Timesteps should be a 1d-array"
							assert embedding_dim % 2 == 0, f"""Embedding dimension {embedding_dim} should be even"""
							UpperCamelCase__				     =			float(embedding_dim // 2       )
							UpperCamelCase__				     =			math.log(max_timescale / min_timescale       ) / (num_timescales - freq_shift)
							UpperCamelCase__				     =			min_timescale * jnp.exp(jnp.arange(_A   ,			dtype=jnp.floataa       ) * -log_timescale_increment       )
							UpperCamelCase__				     =			jnp.expand_dims(_A   ,			1       ) * jnp.expand_dims(_A   ,			0       )

							# scale embeddings
							UpperCamelCase__				     =			scale * emb

							if flip_sin_to_cos:
														UpperCamelCase__				     =			jnp.concatenate([jnp.cos(_A       ), jnp.sin(_A       )]   ,			axis=1       )
							else:
														UpperCamelCase__				     =			jnp.concatenate([jnp.sin(_A       ), jnp.cos(_A       )]   ,			axis=1       )
							UpperCamelCase__				     =			jnp.reshape(_A   ,			[jnp.shape(_A       )[0], embedding_dim]       )
							return signal

class        __SCREAMING_SNAKE_CASE					(     nn.Module       ):
							snake_case     :      int						     =       32
							snake_case     :      jnp.dtype						     =       jnp.floataa






							@nn.compact
							def __call__(						self  , __lowerCAmelCase  ):
														UpperCamelCase__				     =			nn.Dense(self.time_embed_dim  , dtype=self.dtype  , name="""linear_1"""  )(__UpperCamelCase  )
														UpperCamelCase__				     =			nn.silu(__UpperCamelCase  )
														UpperCamelCase__				     =			nn.Dense(self.time_embed_dim  , dtype=self.dtype  , name="""linear_2"""  )(__UpperCamelCase  )
														return temb






class        __SCREAMING_SNAKE_CASE					(     nn.Module       ):
							snake_case     :      int						     =       32
							snake_case     :      bool						     =       False
							snake_case     :      float						     =       1






							@nn.compact
							def __call__(						self  , __lowerCAmelCase  ):
														return get_sinusoidal_embeddings(
														    __UpperCamelCase  , embedding_dim=self.dim  , flip_sin_to_cos=self.flip_sin_to_cos  , freq_shift=self.freq_shift  )









import inspect
import unittest

class        __SCREAMING_SNAKE_CASE					(     unittest.TestCase       ):






							def 				_lowerCamelCase		(						self  ):
														try:
																					import diffusers  # noqa: F401
														except ImportError:
																					assert False







							def 				_lowerCamelCase		(						self  ):
														import diffusers
														from diffusers.dependency_versions_table import deps

														UpperCamelCase__				     =			inspect.getmembers(__lowerCAmelCase  , inspect.isclass  )

														for cls_name, cls_module in all_classes:
																					if "dummy_" in cls_module.__module__:
																												for backend in cls_module._backends:
																																			if backend == "k_diffusion":
																																										UpperCamelCase__				     =			"""k-diffusion"""
																																			elif backend == "invisible_watermark":
																																										UpperCamelCase__				     =			"""invisible-watermark"""
																																			assert backend in deps, f"""{backend} is not in the deps table!"""




