pyiceberg/io/fsspec.py [232:247]:
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    def __init__(self, location: str, fs: AbstractFileSystem):
        self._fs = fs
        super().__init__(location=location)

    def __len__(self) -> int:
        """Return the total length of the file, in bytes."""
        object_info = self._fs.info(self.location)
        if size := object_info.get("Size"):
            return size
        elif size := object_info.get("size"):
            return size
        raise RuntimeError(f"Cannot retrieve object info: {self.location}")

    def exists(self) -> bool:
        """Check whether the location exists."""
        return self._fs.lexists(self.location)
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pyiceberg/io/fsspec.py [276:291]:
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    def __init__(self, location: str, fs: AbstractFileSystem):
        self._fs = fs
        super().__init__(location=location)

    def __len__(self) -> int:
        """Return the total length of the file, in bytes."""
        object_info = self._fs.info(self.location)
        if size := object_info.get("Size"):
            return size
        elif size := object_info.get("size"):
            return size
        raise RuntimeError(f"Cannot retrieve object info: {self.location}")

    def exists(self) -> bool:
        """Check whether the location exists."""
        return self._fs.lexists(self.location)
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