How to retrieve the process ID (PID) of the current Golang process using the os package?

You can retrieve the process ID (PID) of the current Golang process using the os package by calling the os.Getpid() function. Here's an example:

package main

import (
	"fmt"
	"os"
)

func main() {
	pid := os.Getpid()
	fmt.Println("Process ID:", pid)
}

In this example, we import the necessary packages, and then call os.Getpid() to get the current process ID. We then print the process ID using fmt.Println().