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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 get_access_flags_string(value):
 """ Transform an access flags to the corresponding string :param value: the value of the access flags :type value: int :rtype: string """

    buff = ""
    for i in ACCESS_FLAGS:
        if (i[0] & value) == i[0]:
            buff += i[1] + " "

    if buff != "":
        return buff[:-1]
    return buff