bp_dd_is_imported( string $group, string $import )

function bp_dd_is_imported( $group, $import ) {
	$group  = sanitize_key( $group );
	$import = sanitize_key( $import );

	if ( ! in_array( $group, array( 'users', 'groups', 'forums' ) ) ) {
		return false;
	}

	return array_key_exists( $import, (array) bp_get_option( 'bp_dd_import_' . $group ) );
}