Create io.md

docs/modules/io.md

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+---
+icon: package-dependencies
+label: io
+---
+
+!!!
+This module is optional. Set `PK_ENABLE_OS` to `1` to enable it.
+!!!
+
+### `io.FileIO.read(size=-1) -> bytes | str`
+
+Read up to `size` bytes from the file. If `size` is negative or omitted, read until EOF.
+
+### `io.FileIO.write(data: bytes | str)`
+
+Write the given data to the file.
+
+### `io.FileIO.seek(offset, whence=0) -> int`
+
+Change the file position to the given offset. The `whence` argument is optional and defaults to `0` (absolute file positioning); other values are `1` (seek relative to the current position) and `2` (seek relative to the file's end).
+
+### `io.FileIO.tell() -> int`
+
+Return the current file position.
+
+### `io.FileIO.close()`
+
+Close the file.
+
+
+### `io.SEEK_SET`
+
+Seek from the beginning of the file.
+
+### `io.SEEK_CUR`
+
+Seek from the current position.
+
+### `io.SEEK_END`
+
+Seek from the end of the file.
+