config.go

package config

type Conf struct {
  User, Password String
}

main.go

package main

import (
  "test"
  "config"
)

func main() {
  conf := config.Conf{"Test", "Password1234"}
  
  // How do I use conf here?
  test.Run()
}

test.go

package test

import (
  "config"
  "fmt"
)

func (conf Conf) Run() {
  fmt.Println(conf.User)
  fmt.Println(conf.Password)
}