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# Copyright 2022 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
from .deprecation_utils import deprecate
from .import_utils import (
ENV_VARS_TRUE_AND_AUTO_VALUES,
ENV_VARS_TRUE_VALUES,
USE_JAX,
USE_TF,
USE_TORCH,
DummyObject,
is_accelerate_available,
is_flax_available,
is_inflect_available,
is_modelcards_available,
is_onnx_available,
is_safetensors_available,
is_scipy_available,
is_tf_available,
is_torch_available,
is_torch_version,
is_transformers_available,
is_transformers_version,
is_unidecode_available,
requires_backends,
)
from .logging import get_logger
from .outputs import BaseOutput
from .pil_utils import PIL_INTERPOLATION
if is_torch_available():
from .testing_utils import (
floats_tensor,
load_hf_numpy,
load_image,
load_numpy,
parse_flag_from_env,
require_torch_gpu,
slow,
torch_all_close,
torch_device,
)
logger = get_logger(__name__)
hf_cache_home = os.path.expanduser(
os.getenv("HF_HOME", os.path.join(os.getenv("XDG_CACHE_HOME", "~/.cache"), "huggingface"))
)
default_cache_path = os.path.join(hf_cache_home, "diffusers")
CONFIG_NAME = "config.json"
WEIGHTS_NAME = "diffusion_pytorch_model.bin"
FLAX_WEIGHTS_NAME = "diffusion_flax_model.msgpack"
ONNX_WEIGHTS_NAME = "model.onnx"
SAFETENSORS_WEIGHTS_NAME = "diffusion_pytorch_model.safetensors"
ONNX_EXTERNAL_WEIGHTS_NAME = "weights.pb"
HUGGINGFACE_CO_RESOLVE_ENDPOINT = "https://huggingface.co"
DIFFUSERS_CACHE = default_cache_path
DIFFUSERS_DYNAMIC_MODULE_NAME = "diffusers_modules"
HF_MODULES_CACHE = os.getenv("HF_MODULES_CACHE", os.path.join(hf_cache_home, "modules"))
_COMPATIBLE_STABLE_DIFFUSION_SCHEDULERS = [
"DDIMScheduler",
"DDPMScheduler",
"PNDMScheduler",
"LMSDiscreteScheduler",
"EulerDiscreteScheduler",
"HeunDiscreteScheduler",
"EulerAncestralDiscreteScheduler",
"DPMSolverMultistepScheduler",
]
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