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: example_test.go
    path of file: ./repos/gitkube/vendor/golang.org/x/tools/go/gcexportdata
    
    the code of the file until where you have to start completion: // Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build go1.7
// +build gc

package gcexportdata_test

import (
	"fmt"
	"go/ast"
	"go/parser"
	"go/token"
	"go/types"
	"
    
func ExampleRead() {
	// Find the export data file.
	filename, path := gcexportdata.Find("fmt", "")
	if filename == "" {
		log.Fatalf("can't find export data for fmt")
	}
	fmt.Printf("Package path:       %s\n", path)
	fmt.Printf("Export data:        %s\n", filepath.Base(filename))

	// Open and read the file.
	f, err := os.Open(filename)
	if err != nil {
		log.Fatal(err)
	}
	defer f.Close()
	r, err := gcexportdata.NewReader(f)
	if err != nil {
		log.Fatalf("reading export data %s: %v", filename, err)
	}

	// Decode the export data.
	fset := token.NewFileSet()
	imports := make(map[string]*types.Package)
	pkg, err := gcexportdata.Read(r, fset, imports, path)
	if err != nil {
		log.Fatal(err)
	}

	// Print package information.
	fmt.Printf("Package members:    %s...\n", pkg.Scope().Names()[:5])
	println := pkg.Scope().Lookup("Println")
	posn := fset.Position(println.Pos())
	posn.Line = 123 // make example deterministic
	fmt.Printf("Println type:       %s\n", println.Type())
	fmt.Printf("Println location:   %s\n", slashify(posn))

	// Output:
	//
	// Package path:       fmt
	// Export data:        fmt.a
	// Package members:    [Errorf Formatter Fprint Fprintf Fprintln]...
	// Println type:       func(a ...interface{}) (n int, err error)
	// Println location:   $GOROOT/src/fmt/print.go:123:1
}