What interface does the Map structure implement in Go?

In the Go language, the Map structure does not implement an interface in the traditional sense, as map is a built-in data type for storing key-value pairs.

However, when talking about interfaces, a map satisfies an interface of map-like operations: key access, addition, deletion, and key existence check.

Example of using a map in Go:

package main
import "fmt"

func main() {
    m := make(map[string]int)
    m["apple"] = 5
    fmt.Println(m["apple"]) // output: 5
}

If the question is about which interface a map implements, it can be said that a map does not implement any standard interface, as interfaces in Go are defined by methods, and a map is a data type without methods.

To work with maps, custom interfaces are usually defined if data access needs to be abstracted.