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===void io_init(void)===
Initializes the '''io''' routines. Your application calls this function before calling any other '''io''' function and only once before calling '''io_doneio_end()'''.===void io_doneio_end(void)===
Shuts down the '''io''' routines and ensures that the cursor is not left in the middle of the screen, which may be partly filled with characters. Any application that has called '''io_init()''' should call this function before terminating.
