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: import.go
    path of file: ./repos/cosmos-sdk/depinject/internal/codegen
    
    the code of the file until where you have to start completion: package codegen

import (
	"fmt"
	"go/ast"
	"go/token"
	"strings"
)

type importInfo struct {
	*ast.ImportSpec
	importPrefix string
}

// AddOrGetImport adds a new import for the provided pkgPath (if needed) and
// returns the unique import prefix for that path.
func (g *FileGen) AddOrGetImport(pkgPath string) (importPrefix string) {
	if pkgPath == "" || pkgPath == g.codegenPkgPath {
		return ""
	}

	if i, 
    
func (g *FileGen) AddOrGetImport(pkgPath string) (importPrefix string) {
	if pkgPath == "" || pkgPath == g.codegenPkgPath {
		return ""
	}

	if i, ok := g.pkgImportMap[pkgPath]; ok {
		return i.importPrefix
	}

	imp := &ast.ImportSpec{
		Path: &ast.BasicLit{Kind: token.STRING, Value: fmt.Sprintf("%q", pkgPath)},
	}

	defaultPrefix := defaultPkgPrefix(pkgPath)
	importPrefix = g.doCreateIdent(defaultPrefix)

	if importPrefix != defaultPrefix {
		imp.Name = ast.NewIdent(importPrefix)
	}
	g.File.Imports = append(g.File.Imports, imp)
	g.pkgImportMap[pkgPath] = &importInfo{
		ImportSpec:   imp,
		importPrefix: importPrefix,
	}
	g.idents[importPrefix] = true
	return importPrefix
}