Invoke Parameter Methods in Golang Reflection

package main

import (
    "fmt"
    "reflect"
)

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

func (this Student) Rank(score float64) string {
    if score >= 8 {
        return "A"
    } else if score >= 7 {
        return "B"
    } else if score >= 6 {
        return "C"
    } else if score >= 5 {
        return "D"
    } else {
        return "E"
    }
}

func main() {

    student := Student{
        Id:    "st01",
        Name:  "Name 1",
        Age:   20,
        Score: 5.6,
    }
    args := []reflect.Value{reflect.ValueOf(8.5)} // score
    values := reflect.ValueOf(&student).MethodByName("Rank").Call(args)
    fmt.Println(values[0].String())
}    
        

Output

A