You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: terminal.go
    path of file: ./repos/scan4all/vendor/golang.org/x/term
    
    the code of the file until where you have to start completion: // Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package term

import (
	"bytes"
	"io"
	"runtime"
	"strconv"
	"sync"
	"unicode/utf8"
)

// EscapeCodes contains escape sequences that can be written to the terminal in
// order to achieve different styles of text.
type EscapeCodes struct {
	// Foreground colors
	Black, Red, Green, Yellow, Blue, Magenta, Cyan, White []byte

	// Reset all attributes
	Reset []byte
}

var vt100EscapeCodes = EscapeCodes{
	Black:   []byte{keyEscape, '[', '3', '0', 'm'},
	Red:     []byte{keyEscape, '[', '3', '1', 'm'},
	Green:   []byte{keyEscape, '[', '3', '2', 'm'},
	Yellow:  []byte{keyEscape, '[', '3', '3', 'm'},
	Blue:    []byte{keyEscape, '[', '3', '4', 'm'},
	Magenta: []byte{keyEscape, '[', '3', '5', 'm'},
	Cyan:    []byte{keyEscape, '[', '3', '6', 'm'},
	White:   []byte{keyEscape, '[', '3', '7', 'm'},

	Reset: []byte{keyEscape, '[', '0', 'm'},
}

// Terminal contains the state for running a VT100 terminal that is capable of
// reading lines of input.
type Terminal struct {
	// AutoCompleteCallback, if non-null, is called 
    
func (t *Terminal) SetSize(width, height int) error {
	t.lock.Lock()
	defer t.lock.Unlock()

	if width == 0 {
		width = 1
	}

	oldWidth := t.termWidth
	t.termWidth, t.termHeight = width, height

	switch {
	case width == oldWidth:
		// If the width didn't change then nothing else needs to be
		// done.
		return nil
	case len(t.line) == 0 && t.cursorX == 0 && t.cursorY == 0:
		// If there is nothing on current line and no prompt printed,
		// just do nothing
		return nil
	case width < oldWidth:
		// Some terminals (e.g. xterm) will truncate lines that were
		// too long when shinking. Others, (e.g. gnome-terminal) will
		// attempt to wrap them. For the former, repainting t.maxLine
		// works great, but that behaviour goes badly wrong in the case
		// of the latter because they have doubled every full line.

		// We assume that we are working on a terminal that wraps lines
		// and adjust the cursor position based on every previous line
		// wrapping and turning into two. This causes the prompt on
		// xterms to move upwards, which isn't great, but it avoids a
		// huge mess with gnome-terminal.
		if t.cursorX >= t.termWidth {
			t.cursorX = t.termWidth - 1
		}
		t.cursorY *= 2
		t.clearAndRepaintLinePlusNPrevious(t.maxLine * 2)
	case width > oldWidth:
		// If the terminal expands then our position calculations will
		// be wrong in the future because we think the cursor is
		// |t.pos| chars into the string, but there will be a gap at
		// the end of any wrapped line.
		//
		// But the position will actually be correct until we move, so
		// we can move back to the beginning and repaint everything.
		t.clearAndRepaintLinePlusNPrevious(t.maxLine)
	}

	_, err := t.c.Write(t.outBuf)
	t.outBuf = t.outBuf[:0]
	return err
}