Syntax error
<f:alias map="{leftBrace: '{', rightBrace: '}'}">
<amp-analytics data-block-on-consent type="googleanalytics">
<script type="application/json">
{leftBrace}
"vars": {leftBrace}
"account": "{ANALYTICS_ID}"
{rightBrace},
"triggers": {
"trackPageview": {
"on": "visible",
"request": "pageview"
}
}
{rightBrace}
</script>
</amp-analytics>
</f:alias>