default Pty openpty(int cols, int rows) throws IOException {
		return openpty((short) cols, (short) rows);
	}
Open a new pseudo-terminal

@param cols the initial width in characters, or 0 to let the system decide both dimensions
@param rows the initial height in characters, or 0 to let the system decide both dimensions
@return new new Pty
@throws IOException for an I/O error, including cancellation
Ghidra/Framework/Pty/src/main/java/ghidra/pty/PtyFactory.java