Function lilv_sys::lilv_plugin_classes_get_by_uri

pub unsafe extern "C" fn lilv_plugin_classes_get_by_uri(
    classes: *const LilvPluginClasses, 
    uri: *const LilvNode
) -> *const LilvPluginClass

Get a plugin class from classes by URI. Return value is shared (stored in classes) and must not be freed or modified by the caller in any way. @return NULL if no plugin class with uri is found in classes.