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: tags_ssi.go
    path of file: ./repos/faygo/pongo2
    
    the code of the file until where you have to start completion: package pongo2

import (
	"io/ioutil"
)

type tagSSINode struct {
	filename string
	content  string
	template *Template
}

func (node *tagSSINode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error {
	if node.template != nil {
		// Execute the template within the current context
		includeCtx := make(Context)
		includeCtx.Update(ctx.Public)
		i
    
func (node *tagSSINode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error {
	if node.template != nil {
		// Execute the template within the current context
		includeCtx := make(Context)
		includeCtx.Update(ctx.Public)
		includeCtx.Update(ctx.Private)

		err := node.template.execute(includeCtx, writer)
		if err != nil {
			return err.(*Error)
		}
	} else {
		// Just print out the content
		writer.WriteString(node.content)
	}
	return nil
}