pub unsafe extern "C" fn gtk_source_completion_provider_match(
provider: *mut GtkSourceCompletionProvider,
context: *mut GtkSourceCompletionContext,
) -> gbooleanpub unsafe extern "C" fn gtk_source_completion_provider_match(
provider: *mut GtkSourceCompletionProvider,
context: *mut GtkSourceCompletionContext,
) -> gboolean