无法在include标记中使用django变量

from django import template
from django.template.loader import render_to_string

register = template.Library()

@register.simple_tag
def include_template(template_name, variable):
    if variable == 'value1':
        template_path = 'path/to/template1.html'
    elif variable == 'value2':
        template_path = 'path/to/template2.html'
    else:
        template_path = 'path/to/default_template.html'

    return render_to_string(template_path)

{% include_template "template_name" variable %}

from django import template

register = template.Library()

@register.filter
def template_path(variable):
    if variable == 'value1':
        return 'path/to/template1.html'
    elif variable == 'value2':
        return 'path/to/template2.html'
    else:
        return 'path/to/default_template.html'

{% include "template_name"|template_path %}