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import struct
def raise_(ex):
raise ex
def to_bytes(value, size=1, endian='>'):
return {
1: lambda: struct.pack(endian + 'B', value),
2: lambda: struct.pack(endian + 'H', value),
4: lambda: struct.pack(endian + 'I', value)
}.get(size, lambda: raise_(RuntimeError("invalid size")))()
def from_bytes(value, size=1, endian='>'):
return {
1: lambda: struct.unpack(endian + 'B', value)[0],
2: lambda: struct.unpack(endian + 'H', value)[0],
4: lambda: struct.unpack(endian + 'I', value)[0]
}.get(size, lambda: raise_(RuntimeError("invalid size")))()
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