benecaster_locate_template()

Answers one question: has the theme overridden this template part? It searches the child theme and parent theme only — never the plugin’s own templates/ directory — so a false result means “no override”, not “no such part”.

It does not see add-on template directories either, deliberately. A directory registered with benecaster_register_template_directory() is not a theme override, and this function answers the theme question only. For “which file would actually load?”, use benecaster_get_template_path().

Useful in an add-on that wants to enhance the default markup but back off politely when a podcaster has already customised it.