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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def a2bits(chars: str) -> str: """Converts a string to its bits representation as a string of 0's and 1's. '010010000110010101101100011011000110111100100000010101110110111101110010011011000110010000100001' """

    return bin(reduce(lambda x, y: (x << 8) + y, (ord(c) for c in chars), 1))[
        3:
    ]