import org.opendaylight.yangtools.yang.model.api.stmt.ContactEffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.ContactStatement;
import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
import org.opendaylight.yangtools.yang.model.api.stmt.ContactEffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.ContactStatement;
import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;