Find Methods of Struct with Reflection in Golang

package main

import (
    "fmt"
    "reflect"
)

type Student struct {
    Id    string
    Name  string
    Age   int
    Score float64
}

func (this Student) ToString() string {
    return fmt.Sprintf("id: %s\nName: %s\nAge: %d\nScore: %0.1f", this.Id, this.Name, this.Age, this.Score)
}

func (this Student) Rank() string {
    if this.Score >= 8 {
        return "A"
    } else if this.Score >= 7 {
        return "B"
    } else if this.Score >= 6 {
        return "C"
    } else if this.Score >= 5 {
        return "D"
    } else {
        return "E"
    }
}

func main() {

    student := Student{
        Id:    "st01",
        Name:  "Name 1",
        Age:   20,
        Score: 5.6,
    }
    tp := reflect.TypeOf(student)
    fmt.Println(tp.Name())
    fmt.Println("Methods: ", tp.NumMethod())
    for i := 0; i < tp.NumMethod(); i++ {
        fmt.Println(tp.Method(i).Name, ":", tp.Method(i).Type)
        fmt.Println("-----------------------")
    }

}    
        

Output

Student
Methods:  2
Rank : func(main.Student) string
-----------------------
ToString : func(main.Student) string
-----------------------