golang中“Type`的含义是什么？

// The append built-in function appends elements to the end of a slice. If
// it has sufficient capacity,the desTination is resliced to accommodate the
// new elements. If it does not,a new underlying array will be allocated.
// Append returns the updated slice. it is therefore necessary to store the
// result of append,often in the variable holding the slice itself:
//  slice = append(slice,elem1,elem2)
//  slice = append(slice,anotherSlice...)
// As a special case,it is legal to append a String to a byte slice,like this:
//  slice = append([]byte("Hello "),"world"...)
func append(slice []Type,elems ...TypE) []Type

最后一行让我感到非常困惑.我不知道有关……的意思.

这是其他代码.

package main

import "fmt"

func main() {
   s := []int{1,2,3,4,5}
   s1 := s[:2]
   s2 := s[2:]
   s3 := append(s1,s2...)
   fmt.Println(s1,s2,s3)

}

结果是

[1 2] [3 4 5] [1 2 3 4 5]

我想关于…的功能是从elems中选择所有元素.

我找不到官方的解释