I'm using Magento ver. 2.1.8. I created a new theme and inherited the purchased theme. In the parent theme i have a template that i override in the child theme. How can i include the template from the parent theme in the current theme? I think that my decision is not optimal, but i think it's a dirty solution to copy all template HTML from the parent theme. My solution is:
$templateFile = str_replace('my-theme-vendor/my-theme', 'parent_theme_vendor/parent_theme', $block->getTemplateFile());
include($templateFile);