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# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# This source code is licensed under the Apache License, Version 2.0
# found in the LICENSE file in the root directory of this source tree.
from io import BytesIO
from typing import Any
from PIL import Image
class Decoder:
def decode(self) -> Any:
raise NotImplementedError
class ImageDataDecoder(Decoder):
def __init__(self, image_data: bytes) -> None:
self._image_data = image_data
def decode(self) -> Image:
f = BytesIO(self._image_data)
return Image.open(f).convert(mode="RGB")
class TargetDecoder(Decoder):
def __init__(self, target: Any):
self._target = target
def decode(self) -> Any:
return self._target
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