use Context;
/// Convenience function, which calculates hexlify(md5("<{timestamp}>{password}"))
/// as used by POP3's APOP mechanism.
///
/// The timestamp must be provided *without* angle brackets, as they are
/// added by the function internally.
///
/// Note: This function (and the dependency on md5) is gated by the "utils"
/// feature (and used by default).