You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: stackframe.go
    path of file: ./repos/kubeedge/vendor/github.com/go-errors/errors
    
    the code of the file until where you have to start completion: package errors

import (
	"bufio"
	"bytes"
	"fmt"
	"os"
	"runtime"
	"strings"
)

// A St
    
func packageAndName(fn *runtime.Func) (string, string) {
	name := fn.Name()
	pkg := ""

	// The name includes the path name to the package, which is unnecessary
	// since the file name is already included.  Plus, it has center dots.
	// That is, we see
	//  runtime/debug.*T·ptrmethod
	// and want
	//  *T.ptrmethod
	// Since the package path might contains dots (e.g. code.google.com/...),
	// we first remove the path prefix if there is one.
	if lastslash := strings.LastIndex(name, "/"); lastslash >= 0 {
		pkg += name[:lastslash] + "/"
		name = name[lastslash+1:]
	}
	if period := strings.Index(name, "."); period >= 0 {
		pkg += name[:period]
		name = name[period+1:]
	}

	name = strings.Replace(name, "·", ".", -1)
	return pkg, name
}