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_block.go
    path of file: ./repos/xorm/vendor/gopkg.in/flosch/pongo2.v3
    
    the code of the file until where you have to start completion: package pongo2

import (
	"bytes"
	"fmt"
)

type tagBlockNode struct {
	name string
}

func (node *tagBlockNode) getBlockWrapperByName(tpl *Template) *NodeWrapper {
	var t *NodeWrapper
	if tpl.child != nil {
		// First ask the child for the block
		t = node.getBlockWrapperByName(tpl.child)
	}
	if t == nil {
		// Child has no block, lets look up here at parent
		t = tpl.blocks[node.name]
	}
	return t
}

func (node *ta
    
func (node *tagBlockNode) Execute(ctx *ExecutionContext, buffer *bytes.Buffer) *Error {
	tpl := ctx.template
	if tpl == nil {
		panic("internal error: tpl == nil")
	}
	// Determine the block to execute
	block_wrapper := node.getBlockWrapperByName(tpl)
	if block_wrapper == nil {
		// fmt.Printf("could not find: %s\n", node.name)
		return ctx.Error("internal error: block_wrapper == nil in tagBlockNode.Execute()", nil)
	}
	err := block_wrapper.Execute(ctx, buffer)
	if err != nil {
		return err
	}

	// TODO: Add support for {{ block.super }}

	return nil
}