async fn apply_email_template_replacements(
conn: &mut PgConnection,
template_name: &str,
email_id: Uuid,
user_id: Uuid,
blocks: Vec<EmailGutenbergBlock>,
) -> Result<Vec<EmailGutenbergBlock>>async fn apply_email_template_replacements(
conn: &mut PgConnection,
template_name: &str,
email_id: Uuid,
user_id: Uuid,
blocks: Vec<EmailGutenbergBlock>,
) -> Result<Vec<EmailGutenbergBlock>>